同位素

Stable carbon and nitrogen isotope ; weever ; metabolism

碳氮稳定同位素；鲈鱼；新陈代谢

In the Little Ice Age, correspond to the prevalence of the westerly but it is not synchronous.

的小冰期同位素偏负和纹层厚度增加对应西风的强盛，但存在一定的相位差。

The geochemistry and isotopic characteristics of the three xenolith groups vary systematically from group to group.

对各种深源岩石捕掳体的地球化学和Sr-Nd同位素组成分析表明，总体上，麻粒岩类捕掳体呈现富集特点，从二辉麻粒岩到长英质麻粒岩的系统变化指示了壳幔混合作用的存在。

The pot experiment results showed that inoculation with A1501 and A1513 could promote the growth and grain yield of rice. Comparison with the non\|inoculation, the grain yeild of rice treated with A1501 and A1513 increased by 8 5% and 10 3% respectively. And %Ndfa of rice shoot and grain estimated by 15 N\|isotope dilution method was 9 00% and 11 5%, respectively, which was consistent with the increment of the total N(8 5% and 11 6%,respectively).

盆栽结果表明，接种A.faecalis 显著提高了水稻的生长，接种A1501 和A1513 的水稻稻谷产量分别比未接种提高了85％和103％，用15N 同位素稀释法估测水稻地上部总氮中来源联合固氮的百分率达900％和115％，其结果与水稻地上部总氮量的增加幅度（86％和116％）基本一致。

The results show that the angular distribution of the total differential cross section at zero degree increases and the position of oscillation minimum of the same order gradually shift towards small scattering angle along with the increase of the incident isotope He atom mass at identical collision energy. And crossing angle between the elastic and total inelastic DCS gradually decreases and the total inelastic DCS gradually increases.

结果表明：在相同碰撞能量时，随着同位素氦原子质量的增加，总微分截面在0°时的角分布逐渐增大，同一级衍射振荡极小值位置逐渐向小散射角方向移动；弹性与总非弹性截面交界角逐渐减小，总非弹性截面逐渐增加。

Some problems of determining uranium isotope abundance by MAT-260 mass tpectrometer, especially, the influence factors on precision and accuracy are di-acussed. NBS standard samples are used for calibrating the acquisited data.

本报告介绍用MAT-260型质谱计测定铀同位素丰度，着重探讨了影响数据精确度的因素，并采用美国国家标准局样品对测得的数据进行校正，以保证其较高的准确度。

Study on the petrochmical,trace element chemical,REE geochemical and Pb isotopic geochemical characteristics of the Tongshan intrusive indicates that the quartz diorite,granodiorite and adamellite are products of three stages of the same periodfrom only one magmatic source.

通过岩石化学、微量元素地球化学、稀土元素地球化学、铅同位素地球化学特征研究表明，铜山石英闪长岩、花岗闪长岩、二长花岗岩是同一岩浆源同一时期三个侵入阶段的产物，铜山岩体幔壳同熔型的复式岩体，属太平洋钙碱性岩石系列。

Mass transport ; Isotope exchange ; Exchange mechanism ; Flow geometry ; Advective cooling

质量传输；同位素交换；交换机制；流动几何学；平流冷却

Stable carbon isotope data （δ^13C） from feces of mixed-feeding impala Aepyceros melampus living in South Africa＇s Kruger National Park are used to study dietary variations across a variety of spatio-temporal scales.

利用稳定碳同位素数据（δ^13C）分析了南非克鲁格国家公园混食性黑斑羚时间和空间尺度上的食性变化，验证了两个假说，即有蹄类食性变化是由生境中木本植物与草本植物的相对配比导致；降雨控制有蹄类生态。

The variation of large and small subunits of RuBPcase from temperature-sensitive mutant of Anjibaicha during its stage albescent process was investigated as well as the changes of the enzyme activities.

利用SDS-PAGE电泳分析了返白和复绿过程中各阶段叶片可溶性蛋白组分，尤其是RuBP羧化酶大、小亚基的变化，并利用同位素法测定了此过程中RuBP羧化酶活性的变化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷