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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The black shales also contain K-bentonites from explosive, felsic-intermediate volcanism, the distribution of which also supports orogeny to the southeast.
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It is demonstrated that the friction coefficient for these solid electrolytes may correspond to the underdamped-to-intermediate-damping regime.
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Six young bipolar outflows in regions of low-intermediate-mass star formation were observed in the 70-61A+, 80-71A+, and 5-1-40E methanol lines at 44, 95, and 84 GHz, respectively.
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The orebodies occur as quartz veins hosted in metaterrigenous rocks and cut by postmineral basic-intermediate dikes.
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Benzylpenicillin, however, can be used for most infections caused by penicillin-intermediate and all infections caused by penicillin-sensitive strains.
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| | By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of ... | | 把‘镭—铍’所产生的‘光中子’,穿过一层半厘米厚的白蜡,我们便得到一‘连续的中子谱’。他们中间有些中子,能和银的原子核起‘共振作用’,因此可以被银片吸收,而产生‘人工放射银’先测量人工放射的强度和‘共振中子’在银片中的吸收率,再应用原子核内共振能层的宽度,我们便可以求出银的原子核内‘共振能层’的密度大约共振能在零和二十万伏特中间,平均每隔一二百伏特便有一可以吸收质子的共振能层,和理论很相符合。 | | 文摘来源 | | 1. A simple method is presented for determining double bond index of pure unsaturated hydrocarbons, petroleum fractions and other hydrocarbon mixtures based on a correlation of observed refractive index, calculated refrac-tive index, molecular weight and the number of double bonds per molecule. The data neccessary are: (a) mid-boiling point, (b) refractive index at 20℃ for sodium D line, (c) density at 20℃ and (d) weight percent hydrogen of the | | 依据在20℃钠D线折光率实测值,在20℃钠D线折光率计算值,分子量及每一分子内所含双键数间之相互关系,推衍得一简易方法,用以测定纯不饱和烃及石油分馏油份之双键率(Double Bond Index).所需由实验测得之数据为试料之(甲)在20℃钠D线折光率,(乙)在20℃时之密度,(丙)中间沸点(Mid-boiling point),及(丁)含氢重量百分数.用本法测得双键率值,与用尼蒲金(Lipkin),圣金(Sankin)及马丁(Martin)三氏法测得双键率值适相吻合.因此,用本法所测得之双键率,足资用以鉴定石油分馏油份内所含芳香族烃及烯(?)烃之主要型式.惟需指明者,即在依据本法测得之双键率,用以鉴定石油分馏油份内所含不饱和烃之主要型式时,必须测定由石油分馏油份内提出仅含不饱和烃浓缩物之双键率. | | 文摘来源 | | Mental and mandibular foramen of 250 Chinese mandibles were studied. It wasfound that the mental foramina wer located as follows: below apex of the lst premolar--1.2% on the right, 0.4% on the left; between the lst and 2nd premolar--18.8% on theright, 7.6% on the left; below apex of the 2nd premolar--74.4% on the right,82.4% on the left; between the 2nd premolar and lst molar--5.6% on the right,8.8% on the left; below apex of the lst molar--none on the right, 0.8% on the left. Theaverage distance of the ant... | | 观察250个中国人颏孔及下颌孔的位置所得到的结果如下:1.78.4%的颏孔是在第2前臼齿的下方。2.多颏孔以下颌骨数计算有5.2%,以侧计算有2.8%。3.颏孔大致是在下颌体长的前1/4的地点,下颌体高的中间。4.下颌孔大致是在下颌支高的中央,稍靠後缘。 | | 文摘来源 | |   | | << 更多相关文摘 |
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