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dispersion of
相关语句
  分散
     Study on dispersion of ZrO_2 on γ-Al_2O_3
     ZrO_2在γ-Al_2O_3上分散的研究
短句来源
     Dispersion of CeO_2 on Al_2O_3 and TiO_2 Supports
     CeO_2在Al_2O_3及TiO_2载体上的分散
短句来源
     Dispersion of BaCO_3 on the Surface of γ-Al_2O_3 and Its Storage Capacity for NO_x
     BaCO_3在γ-Al_2O_3载体上的分散及其NO_x存储性能
短句来源
     Research of Synthesis and Dispersion of Powders for Phosphate Ceramic Ca_(1-x)Ba_xZr_4P_6O_(24)
     磷酸盐陶瓷 Ca_(1-x)Ba_xZr_4P_6O_(24)粉体的制备及其分散机理研究
短句来源
     STUDY OF THE DISPERSION OF MoO_3 ON Ga_2O_3
     MoO_3在Ga_2O_3上的分散研究
短句来源
更多       
  离散度
     (2) Compared with normal rats, the dispersion of MAP90 [(LVMAP90- RVMAP90) (17 0±6 5 vs. 51 4±28 7, P <0 001)], the dispersion of ERP [(LVERP- RVERP) (4 0±2 2 vs.20 0±7 9) P <0 001] of myocardial infarction rats were increased signicicantly, the steady_state pacing cycle was 250 ms.
     (2)与正常大鼠相比,心梗大鼠的MAP90离散度[(LVMAP90-RVMAP90)(17.0±6.5vs.51.4±28.7,P<0.001)]、ERP离散度[(LVERP-RVERP)(4.0±2.2vs.20.0±7.9)P<0.001]显著增加,基础周期为250ms。
短句来源
     dispersion of activation time (ATd)? dispersion of repolarization t ime(RTd)and dispersion of APD50(APDd1)and APD90(APDd2).
     激动时间(activationtime,AT)、复极时间(repolarizationtime,RT)和AT、APD50、APD90、复极时间(RT)的离散度(dispersion),即ATd、APDd1、APDd2、RTd。
短句来源
     Q-T interval and Q-T dispersion of early repolarization syndrome and myocardial infarction
     早期复极综合征与急性心肌梗死的Q-T间期和Q-T离散度
短句来源
     The Analysis of QT Interval Dispersion of 200 Healthy Adults
     200例健康成人QT间期离散度分析
短句来源
     TpTe (the interval from T peak to T end on the same lead) did not change,but TpTe-max the interval from the earliest T peak to the latest T end across 12 leads, representing transmural dispersion of repolarization (TDR) : 0.21±0.09 s to 0.18±0.07s, P=0.02 significantly decreased.
     TpTe(同一导联上T波顶点到T波结束点的时间间隔)无显著变化,但TpTe-max(12导联中最早的T波顶点到最晚的T波结束点的时间间隔,代表跨壁复极离散度:0.21±0.09s到0.18±0.07s,P=0.02)显著降低。
短句来源
更多       
  色散
     A Study on the Relative Partial Dispersion of B_2O_3-PbO System Containing Additives La_2O_3
     含La_2O_3的 B_2O_3-PbO系玻璃相对部分色散研究
短句来源
     Material Dispersion of ZrF_4·BaF_2 Based Glasses
     ZrF_4·BaF_2系玻璃材料色散性质
短句来源
     As examples, the results of the dispersion of the volume plasmon in the superconductor Bi_2Sr_2CaCu_2O_8, and the computer-fitting analysis of the electron energy-loss spectrum in the low energy region of superconductor YBa_2Cu_3O_(7—x) are shown.
     作为实例,给出了Bi_2Sr_2CaCu_2O_8高温超导体的体等离子色散试验结果和YBa_2Cu_3O_(7-x)高温超导体的电子能量损失谱低能谱区的计算机拟合分析试验结果。
短句来源
     In this paper, chemical stability and relative partial dispersion of TF_3-optical glasses based on B_2O_3-PbO system containing additives La_2O_3, Sb_2O_3,SiO_2 are investigated.
     本文研究了在B_2O_3-PbO玻璃中引入La_2O_3、Sb_2O_3、SiO_2后,TF_3光学玻璃化学稳定性及特殊相对部分色散
短句来源
     It is found that the chromatic dispersion of the Coude system is almost flat.Dispersions in grade 1-3 are 8.391±0.09/mm(m=1),4.185±0.05/mm(m=2) and 2.794±0.03/mm(m=3) respectively.
     ( 1 )Coude系统的色散曲线几乎呈水平分布 ,1~ 3级光谱 (m)的倒色散分别为8.3 91 ± 0 .0 9 /mm (m =1 ) ,4 .1 85 ± 0 .0 5 /mm (m =2 )和 2 .794 ± 0 .0 3 /mm (m =3 )。
短句来源
更多       
  “dispersion of”译为未确定词的双语例句
     MAGNETO-OPTICAL DISPERSION OF ACETYL ACETONE
     Acetyl acetone之磁偏极化<英文>
短句来源
     RELATIONSHIP BETWEEN THE PLATINUM DISPERSION OF PLATINUM-SILICA-ALUMINA CATALYSTS AND THEIR CATALYTIC PROPERTIES
     铂硅铝催化剂的铂分散度与催化性能的关系
短句来源
     DISPERSION OF ROCKETS UNDER CONDITIONS OF THE RANDOM WIND
     随机风场作用下火箭弹的散布
短句来源
     STUDY ON THE RADIAL DISPERSION OF GAS IN A FIXED BED OF CARBON FIBER
     碳纤维固定床径向扩散的研究
短句来源
     MONOLAYER DISPERSION OF MoO_3 ON γ-Al_2O_3 FROM DIFFERENT SOURCES
     MoO_3在不同来源的γ-Al_2O_3表面上单层分散的研究
短句来源
更多       
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  dispersion of
XRD pattern and SEM micrograph showed a good dispersion of ammonium carnallite and anhydrous magnesium chloride crystals with well-distributed big grains, just enough to meet the need for the production of magnesium metal in the electrolysis process.
      
TEM images revealed that a carbon encapsulated core/shell structure was formed in the composites, which could ensure good dispersion of carbon nanoparticles within the PMMA matrix.
      
Based on the characterization results, plasma treatment endowed the samples with smaller particle size, higher dispersion of active components, and an enrichment of active components on the surface as well.
      
The better the dispersion of the conduction grains, the larger the total effective area of the catalyst is.
      
The dispersion of nano-CaCO3 in the matrix of the polymer at the nanoscale was confirmed by scanning electron microscopy (SEM).
      
更多          


The magneto-optical dispersion of acetyl acetone was measured in a magnetic field of about 6000 gausses in intensity and 4 cms in length. Absolute values of Verdet constant for the substance were obtained. Account for the discrepancies of the values of e/m and the atomic specific rotations calculated from the data was given.

吾人曾用各种单色光,测定Acetyl acetone之磁偏极化。

Sugar cane borers infest the cane and cause a considerable injury to the plant in China. Four species of sugar-cane borers are commonly found in Kwangtung Province, viz. Diatraea venosata Wk., Chilo infuscatellus Snellen, Eucosma schistaceana Snellen and Sesamia inferens Wk.Trichogramma evanescens Westw. occurs in nature as an egg parasite of the sugar-cane borers.The present experiment on breeding Trichogramma centres around the ways of increasing its viability.The quality and the quantity of the nutrient for...

Sugar cane borers infest the cane and cause a considerable injury to the plant in China. Four species of sugar-cane borers are commonly found in Kwangtung Province, viz. Diatraea venosata Wk., Chilo infuscatellus Snellen, Eucosma schistaceana Snellen and Sesamia inferens Wk.Trichogramma evanescens Westw. occurs in nature as an egg parasite of the sugar-cane borers.The present experiment on breeding Trichogramma centres around the ways of increasing its viability.The quality and the quantity of the nutrient for the larvae and adults of Trichogramma play an important role in relation to their viability. The contents of the egg of Sitotroga cerealella Oliv. which has been commonly used as a host of the Trichogramma are of poor nutrient quality and quantity for the larvae of this parasite. The eggs of Angoumois grain moth are so small that only one adult Trichogramma emerges from each egg. Such adults are usually smaller in size, less active and with lower reproductive potentiality as compared with those that emerge from the field hosts; besides, the female sex ratio gradually decreases in the successive generations.From the results of an experiment on Trichogramma breeding, it is found that the eggs of Attacus cynthia ricini Boisd. and of Dendrolimus sp. are the most suitable hosts for the propagation of Trichogramma evanescens. The adults of the parasites emerging from such eggs are generally large in size, very active and possess high reproductive potentiality; besides, the female sex ratio remains unchanged in the successive generations. Evidently, the quality and the quantity of the egg contents of these two species of insects fulfil the nutritional requirements for the development of the Trichogramma larvae and they are recommended as hosts for Trichogramma propagationThe average number of adult Trichogramma emerging from a single egg of Dendrolimus sp. and that of Attacus cynthia ricini is 27.3 and 28 respectively with the respective maximum reaching 52 and 59 in the present record. If too many adults emerge from a single egg, both their size and reproductive potentiality would decrease and, moreover, the number of the male individuals would increase and the adult life would shorten. Undoubtedly, all these features are unfavourable for the utilization of the parasites for control of the insect pest as far as the effectiveness of the parasites is concerned. From the standpoint of increasing viability of the parasite, regulation of the number of parasites in the egg during the procedure of propagation of Trichogramma is necessary. Regulation of the number of parasites in the egg means regulation of the quantity of the nutrient for the parasites. The method of checking the occurrence of superparasitism is to regulate the ratio of the number of female Trichogramma and host eggs to 1:1 through the procedure of propagation; the period of oviposition should not exceed one day.The quality of nutrient for adult Trichogramma greatly affects its longivity and reproductive potentiality. The result of a nutritional experiment shows that honey is the most suitable nutrient for it. The adults fed with honey have the longivity increased 8.6 times and the number of the offspring 14.7 times as compared with those fed with distilled water.Cold storage effectively reduces the speed of development of the immature stage of Trichogramma. The mature larvae about to pupate within the host eggs maintain their life for 57 days under 4—7℃ and all of them will come out as adults at room tempeature. The fresh eggs of Dendrolimus sp. and of Attacus cynthia ricini kept in cold storage of 0— 4℃ for 97 days and 61 days respectively are still usable for rearing Trichogramma.In order to increase the adaptability of Trichogramma to the environment of the sugarcane field, the rearing procedure is suggested to proceed in the field or in an indoor environment with fluctuating temperature and humidity. The continuous artificial rearing should not exceed five generations before the liberation of the parasites.The distance of dispersion of Trichogramma eva

甘蔗是我国最重要的糖料作物,甘蔗害虫以甘蔗螟虫最普遍,分怖亦最廣。廣东珠江三角洲常见的甘蔗螟虫共有四种:条螟或称斑点螟(Diatraea venosata Wk.)、二点螟(Chilo infuscatellus Snellen)、黄螟(Eucosma schistaceana Snellen)和大螟(Sesamiainferens Wk.)。甘蔗螟虫为害的结果,形成枯心苗和蛀(?),影响甘蔗生长发育,减低蔗糖成份,易受风折,而且造成甘蔗赤腐病菌入侵条件。 甘蔗螟虫的为害虽重,但目前还没有一套完整的防治方法,也还没有一种很有效的方法。本试验目的,是利用赤眼蜂来防治甘蔗螟虫。试验内容是赤眼蜂的寄主的选择和繁殖、赤眼蜂的繁殖及保存、赤眼蜂田间放播初步试验和甘蔗螟虫田间发生情况的调查。现将各项试验结果简要地分述如下: 赤眼蜂能否利用成功,要看培育出来的赤眼蜂是否具有高度的生活力。赤眼蜂的生活力可用下列四个标准去量度:(1)蜂体大小,(2)繁殖能力,(3)成虫寿命,(4)对田间环境的適应性。此外,繁殖出来的赤眼蜂雌性此率不应此自然界的减低。 赤眼蜂的生活力,首先和寄主有很大关系。如果寄主卵的内含物的质和量都適合 於赤...

甘蔗是我国最重要的糖料作物,甘蔗害虫以甘蔗螟虫最普遍,分怖亦最廣。廣东珠江三角洲常见的甘蔗螟虫共有四种:条螟或称斑点螟(Diatraea venosata Wk.)、二点螟(Chilo infuscatellus Snellen)、黄螟(Eucosma schistaceana Snellen)和大螟(Sesamiainferens Wk.)。甘蔗螟虫为害的结果,形成枯心苗和蛀(?),影响甘蔗生长发育,减低蔗糖成份,易受风折,而且造成甘蔗赤腐病菌入侵条件。 甘蔗螟虫的为害虽重,但目前还没有一套完整的防治方法,也还没有一种很有效的方法。本试验目的,是利用赤眼蜂来防治甘蔗螟虫。试验内容是赤眼蜂的寄主的选择和繁殖、赤眼蜂的繁殖及保存、赤眼蜂田间放播初步试验和甘蔗螟虫田间发生情况的调查。现将各项试验结果简要地分述如下: 赤眼蜂能否利用成功,要看培育出来的赤眼蜂是否具有高度的生活力。赤眼蜂的生活力可用下列四个标准去量度:(1)蜂体大小,(2)繁殖能力,(3)成虫寿命,(4)对田间环境的適应性。此外,繁殖出来的赤眼蜂雌性此率不应此自然界的减低。 赤眼蜂的生活力,首先和寄主有很大关系。如果寄主卵的内含物的质和量都適合 於赤眼蜂幼虫营养之需,羽化出来的成虫体积大,繁殖力强,寿命也有延长的趣势。关於赤眼蜂的寄主,我们管用过17种鳞翅目昆虫的卵供其寄生,结果以松毛虫(Dendro

This paper discusses four problems about the life history and habitations of the pine-cater-pillar Dendrolimus punctatus Wk. 1. The life history as relations to the climate factor: The caterpillar occures 2--3 genera-tions per year, it means that one part overwintering with second and the others with third ofthe unmatured larvae. The break of each generation nearly coincides to each other in every year,but if the weather is faul in March and April, and the monthly rainfall is higher, the date ofcocoon-spinning...

This paper discusses four problems about the life history and habitations of the pine-cater-pillar Dendrolimus punctatus Wk. 1. The life history as relations to the climate factor: The caterpillar occures 2--3 genera-tions per year, it means that one part overwintering with second and the others with third ofthe unmatured larvae. The break of each generation nearly coincides to each other in every year,but if the weather is faul in March and April, and the monthly rainfall is higher, the date ofcocoon-spinning of the overwintered larvae will be delayed, thus the following generation willalso be delayed. Otherwise, if the weather is fine in March and April, the date of cocoon-spinning will take place quicker awhile. 2. The duration of starvation of the nearly matured larvae as relations to the percentageof emergence, egg-contains in female and to the sexual ratio: The experiment indicates, thatgiving the larvae nearly matured in starvation condition, most of them can oblige to cocoon-spinning. The percentage of the date of emergence of these cocoon is nearly inversely propo-tional with the date of enduring hunger, and the femal individuals will a little increase ascompared with in normal condition, but the egg-contains are decreased regularly as to the dateof enduring in starvation. This experiment indicates, that the nearly matured larvae when confront the lacking of foodplant will still enter to cocoon-spinning. They are also the source of the mass out-break, wemay continue to pay a great attention to them, control them in a proper time. 3. The percentage of emergence, sexual ratio as relations to the out-break of the pine-cater-pillar: According to our work, when the density of the pine-caterpillar increases, the percentageof emergence still contains in a rather larger degree (as in 70% or more), and the sexuel ratioapproaches to 1: 1, That the out-break of this caterpillar may be come sooner. This suppositionwill be confirmed by the further study, but it at least gives us an expectation to anticipate thedate of out-break in a rather simple way. 4. Migration and dispersion of the new-hatched larvae, the nearly matured larvae and thechanging of the larvae in a giving number in the pine tree: According to our observation thatthe method of dispersion of the new-hatched larvae is by the helpness of the wind, the directionof the dispersion is corresponding to the direction of wind, the dimension of the dispersionarea and the percentage of living individuals are relations to the velocity of wind and density oftrees. The migration of the nearly matured larvae is mainly by means of crawling. They havethe habitation of aphototropisism and negative geotropism. As to the changing of the larvae ina giving number in the pine tree. they are much concerned to the wind velocity in hatching,the egg deposition and the density of larvae in these trees.

这篇报告主要讨论了有关松毛虫发生规律的四个问题: 1.松毛虫年生活史和气候因子的关系:累积四年观察的资料,肯定了松毛虫在莲塘一年发生2—3代,即其一部分以第二代中小幼虫,一部分以第三代中小幼虫过冬,各代每个态别的盛发期,基本一致,但如3、4月间温度低,阴雨天长,降雨量多,则能延缓越冬代幼虫的结茧,这样,以后各代,也会顺次略为推延。3—4月温度高,结茧期也会相应略为提早。 越冬二、三代幼虫结茧的迟早问题,在这篇文章中,也讨论到了。由于第二代越冬幼虫在8月中下旬起,食量即大减少,停食期早,次春开始取食日期,又比较晚。第三代越冬幼虫没有这种现象。所以这二种世代在次春的结茧变蛾期,相差不大。在有些情况下,由于晚秋寒冷降临较迟,第三代越冬幼虫取食期延长,甚而还有可能比第二代提早几日结茧。 2.大幼虫耐饥与羽化率,含卵数和性比等的关系:这个项目,是因为看到松毛虫在大发生时,松针被完全吃光,有些幼虫,还能被迫结茧,为欲了解这些虫茧在今后的命运,试验共进行了二年,计二批,所得结果,证明大幼虫在接近结茧时耐饥,多数仍然能被迫结茧,这些虫茧的羽化率高低,与耐饥日期长短,大致上成反比,即结茧距耐饥日期短的,羽化率要高于日期长的。性...

这篇报告主要讨论了有关松毛虫发生规律的四个问题: 1.松毛虫年生活史和气候因子的关系:累积四年观察的资料,肯定了松毛虫在莲塘一年发生2—3代,即其一部分以第二代中小幼虫,一部分以第三代中小幼虫过冬,各代每个态别的盛发期,基本一致,但如3、4月间温度低,阴雨天长,降雨量多,则能延缓越冬代幼虫的结茧,这样,以后各代,也会顺次略为推延。3—4月温度高,结茧期也会相应略为提早。 越冬二、三代幼虫结茧的迟早问题,在这篇文章中,也讨论到了。由于第二代越冬幼虫在8月中下旬起,食量即大减少,停食期早,次春开始取食日期,又比较晚。第三代越冬幼虫没有这种现象。所以这二种世代在次春的结茧变蛾期,相差不大。在有些情况下,由于晚秋寒冷降临较迟,第三代越冬幼虫取食期延长,甚而还有可能比第二代提早几日结茧。 2.大幼虫耐饥与羽化率,含卵数和性比等的关系:这个项目,是因为看到松毛虫在大发生时,松针被完全吃光,有些幼虫,还能被迫结茧,为欲了解这些虫茧在今后的命运,试验共进行了二年,计二批,所得结果,证明大幼虫在接近结茧时耐饥,多数仍然能被迫结茧,这些虫茧的羽化率高低,与耐饥日期长短,大致上成反比,即结茧距耐饥日期短的,羽化率要高于日期长的。性比上,则经耐饥后结茧的,蛾数目似乎要比常态下结茧的多些。?

 
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