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     Search for 3-10TeV Gamma-ray Bursts Using the Data of the Tibet Ⅱ/HD Air Shower Array
     用羊八井二期/加密阵列数据寻找3~10TeV能区的宇宙伽玛暴
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     MUTAGENICITY STUDIES OF AFLATOXIN B_1 TREATED WITH ANTIMYCOTOXIN HD USING SALMONELLA/MICROSOME TEST
     抗霉毒剂HD改变黄曲霉毒素B_1致突变性的实验研究(用沙门氏菌/微粒体试验检测)
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     A Suspected Binary System for HD 94033
     关于HD94033的双星假设
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     QUANTITATIVE STUDY ON THE MUTAGENICITY OF ANTIMYCOTOXIN HD TREATED AFLATOXIN B_1 BY SCEASSAY
     抗霉毒剂HD改变黄曲霉毒素B_1致突变性的定量研究
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     HD83—02 Intelligent Telephone
     HD83—02智能电话机
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     Results HD was efficient.
     结果  HD疗效满意。
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     (C) HD has genetic tendency.
     (3)HD有遗传倾向
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High-density MgB2 (HD-MgB2) superconducting samples (D ? 2.2 g/cm3), using different sources of magnesium powder as raw material, were synthesized in ambient pressure in a rich Mg environment.
      
A computer-controlled system for measuring the thermodesorption of D2 and HD molecules from various materials at an arbitrary heating rate is described.
      
Examples are CO molecules bound through C and O atoms with metal cations in zeolites or with surface hydroxyl groups, the thiophene molecule via hydrogen bonding with silanol groups, and HD molecules dissociatively adsorbed on ZnO.
      
The relative genomic content of ribosomal repeats (rDNA) was estimated for 75 individuals, including 33 healthy donors (HD) and 42 schizophrenic patients (SP).
      
The rDNA copy number in HD was 427 ± 18 (mean ± SE) per diploid nucleus, ranging 250-600.
      
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Ⅰ. General SKETCH The Cenozoic basalt lavas are widely distributed along the coastal regionand its adjacent districts in eastern China. They form either widespread plateausor scattered mesa-like hills; and, in some places, the volcanic craters are stilladmirably preserved to-day. These basalt sheets were erupted extensively in lateTertiary and early Quaternary times. They belong to the multiple-vent basalts,but not the plateau basalt in the type of eruption. In this paper are given the results of a petrochemical...

Ⅰ. General SKETCH The Cenozoic basalt lavas are widely distributed along the coastal regionand its adjacent districts in eastern China. They form either widespread plateausor scattered mesa-like hills; and, in some places, the volcanic craters are stilladmirably preserved to-day. These basalt sheets were erupted extensively in lateTertiary and early Quaternary times. They belong to the multiple-vent basalts,but not the plateau basalt in the type of eruption. In this paper are given the results of a petrochemical study of the Ceno-zoic basalt in eastern China. Geological and petrographical studies of the basaltsare not described in detail. Judging from the chemical compositions, the mostoutstanding characteristic feature of the most basaltic rocks is the richness inalkalis, especially in K_2O, also the undersaturation in silica, and, therfore,the most of the basalts distinctly belong to the alkaline rock suite. Such chemicalcharacters are closely related to modal compositions. The general petrogra-phical characters of the basalt may be now as well described. In North Chinaand South Manchuria most basalts are trachy basalt and its allied types, andoccasional nepheline basalt. The constituent minerals of these basalt are cha-racterized by the presence of anorthoclase, potash-adesine, plagioclase, titanaugite,as well as by the abundance of olivine. In South China the main basalt is olivinebasalt, consisting of olivine, augite, and plagioclase as usual. At some placesthe basalt may be slightly silica saturated that the occasional presence of hyper-thene and quartz (xenocryst) is noteworthy. In North Manchuria the dominant basalt is leucite basalt, containing leucite and olivine as phenocryst and groundmass constituent. Xenocryst of quartz and feldspar grains are sometimes present.In Taiwan Province, basalt of Kuanyinshan volcano is of the tholeiite type,but, in some other districts, the alkaline basalt with feldspathoidal constituentalso occurs. In view of the above-mentioned facts, the petrographical difference seemsto be matched by the differences of the major tectonic forms of China. Thesefacts may be tabulated below: Geographical region Tectonic forms Basalt type 1. North Manchuria Granitized region in Varisclde Leucite basalt 2. North China & South Precambrian Sino-Korean Trachybasalt Manchuria massive 3. South China Huanan platform in Yenshanide Olivine basalt 4. Taiwan Himalayide Tholeiite basalt Ⅱ. Regional INVESTIGATION In Table 1 the chemical analyses of the Cenozoic volcanic rocks in easternChina published up to 1951 were collected, of which 74 analyses are basalticrocks. The available analyses of every basalt sheet are taken an average to re-present the regional composition of the basaltic rocks. The localities of the basaltsheets where the analyzed chemical data are referable are shown in Figure 1.In all, 21 localities of basalt are investigated. The average chemical compositionsof each basalt locality, together with the normative minerals, Niggli's valuesand Zavarickij's numbers are given in Tables 2 A and 2 B respectively (localnos. in Table 2 correspond to the numerous in circle in Figure 1). For theconvenience of comparison, the average chemical composition of some standardbasalts (after S. R. Nockolds, 1954), some alkaline basalt in New Zealand (afterW. N. Benson, 1944) and Uganda (after A. Holmes, 1937), and the world's ba-salts, together with the normative minerals, Niggli's values and Zavarickij'snumbers of our calculation, are selected and given in Tables 3A, 3B, 7A, 7Brespectively. As mentioned above, the chemical composition of eastern China basalt ischaracterized by the high content of alkalies, and especially the K_2O. This cha-racter is definitely revealed by the normative feldspar, which is given in Table2 A and graphically shown in Figure 2. From this graphical representation,it is recognized that the normative feldspar becomes increasingly enriched ormolecular from South China to North Manchuria. Although the projected points appear to be scattered, a trend of clustering of the normative feldspars in accor-dance with its geographical distribution is apparent upon close inspection. Inthe normative pyroxene diagram, Figure 3, it is shown that most basalts of easternChina are rich in Wo molecular, falling near the Di-Hd line; On the otherhand, those of Kuanyinshan basalts of Taiwan Province are poor in Wo andcluster in the central part of the Di-Hd-Fs-En field. Therefore, that the easternChina basalt, excluding that of Kuanyinshan, belong to the alkaline rock suiteis justified. The comparison diagrams of qz, al-alk, C-(al-alk) and K-mg ofNiggli's values, based on the data given in Tables 2 B, 3 B, and 7 B, are gra-phically shown in Figs. 4, 5, 6 and 7 respectively. As will be seen from thesefigures, in general, the qz and al-alk of Niggli's value are lower, but C-(al-alk) and K-mg are higher than those of some common basalts. Fig. 8 isZavorickij's petrochemical vector diagram, from which the petrochemical cha-racters of high alkaline property in eastern China basalts are clearly justified. Ⅲ. Serial COMPARISON For ascertaining and understanding the general chemical characters, theCenozoic eastern China basalt and its differentiated associations are divided,based on the SiO_2 content, into 5 chemical types, the average composition ofwhich is given in Table 5A. As the chemical composition of Kuanyinshanvolcanic rocks in Taiwan Province shows a distinct calc-alkaline affinity, it is,therefore, dealt with the same procedure as well. The average chemical compo-sition of the volcanic rocks is given in Table 5 B. Since the Cenozoic basalt ineastern China covers the region adjacent to the Circum-Japan Sea and the Ja-panese Archipelagoes which are well known by the occurrence of alkaline andcalc-alkaline rock suite respectively. The serial variation in the chemical com-position of eastern China volcanic rocks is examinated in comparing them withthose of the Circum-Japan Sea and the Japanese volcanic rocks. The data usedfor the Circum-Japan Sea and Japanese rocks, which are given in Tables 6 A and6 B, are based on Tomita's and Yamada's calculated results respectively. Zavaric-kij's number of the same rocks, based on Zavarickij's data, is given in Table6 C. Following various petrochemical methods, some graphic diagrams are cons-tructed in order to express the chemical characters of the rock series of easternChina more definitely. The difference in chemical composition as comparedwith the Circum-Japan Sea alkaline rock suite is shown in the normal varia-tion diagram Figure 9. Other petrochemical indices (proposed by Peacock, Hol- mes and Tomita respectively) obtained are summarized below: Ⅰ Ⅱ Ⅲ Ⅳ alkali-lime index (Fig. 10) 65.5 59.0 63.0 52.0 alkali-alumina index (Fig. 11) -- -- 67.8 63.3 Ol-Q index (Fig. 12) 20.0 43.0 72.5 76.5 Ne-Hy index (Fig. 13) -- -- 55.0 59.9 Di-C index (Fig. 14) 46.5 46.5 -- -- Ⅰ. Japanese volcanic rocks; Ⅱ. Taiwan volcanic rocks; Ⅲ. Circum-Japan Sea alkaline suite; Ⅳ. eastern China volcanic rocks.From these graphical solutions in Figs. 10-14, it may be justified that thevolcanic rocks in eastern Asia have increasingly enriched the alkali contentfrom the Japanese Archipelagoes to the mainland of China. Figure 15 is avariation diagram of the normative feldspar of the eastern China series, incomparison with that of the Circum-Japan Sea region, the Japanese Archipela-goes and New Zealand. As will be seen from the diagram, the variation of thenormative feldspar of eastern China rock series is quite discriminative. Notonly is it richer in or molecular, but the positions of point N and O (corres-pond to the respective Ol-Q and Ne-Hy indices as shown in Figs. 12 and 13)of the eastern China series are also in a later course than the others. Figure 16is a paragenetic diagram of the normative plagioclase and pyroxlene of theeastern China series. In the variation diagram of the normative pyroxene, Fig.17, the distinct difference in the course of variation between the alkaline andcalc-alkaline series is clearly revealed. In this connection, the directon of varia-tion in the normative pyroxene of the alkaline series differs from that of thecalc-alkaline series. It is also notable that the range of variation in the easternChina series is smaller, due to the presence of higher Wo molecular in bothbasic and acidic types, as compared with that of the Circum-Japan Sea series.Figure 18 is Zavarickij's petrochemical vector diagram of the eastern Chinaseries compared with that of Circum-Japan Sea and Japanese series. It may be acomplemental diagram of the serial comparison diagram of eastern Asia volcanicrock series, prepared by Zavarickij (cf. A. N. Zavarickij's Introduction to Petro-chemistry of Igneous Rocks, 1950, Fig. 61, p. 205, in Russian). The distinctdifference of these rock series may be clearly observed in the graphical solution.In Table 7 A is given the average chemical composition of eastern China basalt,together with the composition of basaltic rocks of the world (including olvinebasalt and Toleiite, Ocean basalt and Continent basalt) for comparison. Theeastern China average is very similar to the average composition of the olivine- basalt of the Circum-Japan Sea region (based on Tomita, 1935, and recalculatedby the writer), while it differed more or less from that of any of the world'sbasalts by the high content of alkali and especially K_20. This character isdefinitely revealed by the normative feldspar and pyroxene, which are graphi-cally shown in Figs. 19 and 21 respectively. Figure 20 is Zavarickij's petroche-mical diagram of the world's basalt. As shown in these diagrams, it suggests atransitional relation rather than a sharp cleft in the petrochemical charactersof the world's basalts. There are no distinct types of basalt magma but rathera continuous series from silica saturated (tholeiitic) to silica-undersaturated(olivine-basalt) rock, although the chemical distinction may be too subtle to beread directly from chemical analyses. Ⅳ. ORIGINAL Basalt Magma The original magma of eastern China basalt belongs to the olivine basaltmagma type. In this discussion it is assumed that the primary olivine basaltmagma is melted from a crust of peridotitic crystalline rock in the upper partof the sima layer. Olivine basalt magma may be modified by the gain of alimited amount of silica and some alkalies to produce a derived melt, whichappears to coincide with the thole

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In the application of fluidization to chemical metallurgy, many processes involve the transport of heat and mass both inside a particle and between the particle and the surrounding fluid. The term, mixed specific resistance, R′(R′=Nu′=hD_p/k_s and R′=Sh′=h_DD_P/D_s for heat and mass transfer, respectively), is proposed, through which, by means of the curve shown in Figure 2, it is possible to estimate the fraction of total resistance due to transfer inside the particle, thus permitting one to ascertain...

In the application of fluidization to chemical metallurgy, many processes involve the transport of heat and mass both inside a particle and between the particle and the surrounding fluid. The term, mixed specific resistance, R′(R′=Nu′=hD_p/k_s and R′=Sh′=h_DD_P/D_s for heat and mass transfer, respectively), is proposed, through which, by means of the curve shown in Figure 2, it is possible to estimate the fraction of total resistance due to transfer inside the particle, thus permitting one to ascertain whether or not a given transport process can be effectively hastened by dilute-phase technique.The effectiveness of dilute-phase technique in accelerating transport processes is primarily due to the unique characteristics of its particle-fluid dynamics. After an analysis on the fixed bed, a single particle in a fluid, and the dense—and dilute—phase fluidized systems, the present paper points out that a differentiation should be made between the local transfer coefficient and an apparent value based on the entire system. For densephase fluidization with gases, for example, the latter may be lower than the former by 2—3 orders of magnitude. This tremendous disparity is mainly caused by the back-mixing of both the particles as a group and of the fluid, as well as by the heterogeneous nonuniformity characteristic of may a particle-fluid system. Based on the present analysis, which is duly supported by experimental evidence, it is shown that dilute-phase technique can be used effectively to reduce back-mixing and to suppress the heterogeneous nature in nonuniform velocity fronts, thus raising the values of apparent transfer coefficients to the range of the local coefficients of the idealized single particle model. From the point of view of system pressure drop, too, dilute-phase fluidization represents much lower power consumption than the corresponding fixed bed or dense-phase operation.

在流态化冶金中許多过程包含顆粒內部和顆粒与其周围流体之間的传热和传貭,本文提出了一个混合对比阻力R′(对于传热和传貭分別为R′=Nu′=hD_P/k_s,R′=Sh′=h_DD_P/D_s),通过图2的曲綫来近似地計算顆粒內部传递过程占总传递过程阻力的分数,从而可以确定哪些过程可以有效地通过稀相技术来加速。稀相技术在提高颗粒—流体界面传递速度的显著效果有賴于稀相流态化中顆粒—流体的流动特点。本文分析了固定床、单顆粒和浓相、稀相流态化床中颗粒与流体的运动,并指出顆粒—流体间的传递系数可以分为局部的真值和系統的表观值两种,对浓相流态化床而言,后者可低于前者2—3个数量級。此巨大差别主要是由于顆粒羣的、流体的返混以及流速分布的非齐次性所致。根据分析和实驗数据,稀相操作是减少返混和降低流速分布非齐次性的有效措施,从而可以提高表观传递系数,使其接近于(甚至超过)单顆粒的理想数值。从系統压降的分析,稀相流态化的能量消耗亦将远远低于固定床和浓相流态化。

The emissivity of various room temperature materials may be measured simply by the HD Infrared Low Temperature Radiometer, the results of the measurement are in agreement with those of other articles.

用HD红外低温测温仪很简单地就可测定各种常温物体的比辐射率,其结果与文献上发表的相一致。在用测温仪测定室内各种常温物体的辐射温度时发现,它们的辐射温度几乎是相等的。为了解释这些实验现象,我们推导了相应的公式,认为在这种情况下必须考虑目标对环境辐射的反射。

 
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