稀有

In this article,the analysis of rare gas using DID gas chromatography is introduced.

叙述了D ID检测器应用于稀有气体分析，以增加电场梯度方式提高氦中氖的检测灵敏度。

Among them the rare gas of 0.94% gave scientists countless surprises, the life that also is us was added bizarre.

其中0.94%的稀有气体给了科学家们无数的惊喜，也为我们的生活增添了奇异。

Helium is the lightest rare gas.

氦是最轻的稀有气体。

The progresses of tracing ore-forming fluids in different kinds of ore deposits using rare gas isotopes are summarized, and some problems and the developing tendency about this method are also discussed.

归纳了近年来用稀有气体同位素来示踪成矿流体的研究进展，概括了其在不同类型矿床中的应用现状，并指出当前该方法存在的问题及发展趋势。

The rare gas isotopic ratio in the fluid inclusions of the samples is determined, and the influence caused by all kinds of latter processes from the measured data is ruled out.

测试样品流体包裹体中的稀有气体同位素值，从测试值中排除掉包裹体形成后各种后生过程对流体初始同位素组成的影响。

The discharge space (13) is filled with mercury as light-emitting material, rare gas such as xenon, and halogen gas for halogen cycle.

放电空间(13)以水银填充当发光物质，稀有气体例如氙，和卤素循环的卤素气体。

Isotope geochemistry of noble gases Expounded the relations of 3 He4He ratio and the classif ication of tecto nic regions in China, the composite storage of mantle helium, the controversy of mantle methane and the gas-source rock correlation.

稀有气体同位素地球化学阐述了3He4He值与中国构造分区，幔源氦的复合成藏和幔源甲烷问题以及气源对比等3。

The basic concept is combining metabolic pathways in different organisms on a genetic level. As a consequence heterologous organisms provide precursors from their own primary and secondary metabolism that are metabolised to the desired secondary product due to the expression of foreign genes.

组合生物合成是得到新颖天然产物的一种新型工具，并且可以用于生产稀有珍贵的天然产物，其基本概念是在基因水平上将不同有机体的代谢途径结合起来，从而使异源性生物通过外源基因的表达代谢出期望的次生代谢产物，然后从它们的主要代谢和次生代谢中得到想要的前体。

In those days, during the 1950s, the big concern of ornithologists in our area was the wild turkey.

在50年代，我们这一地区鸟类学家最关心的是稀有的野火鸡。

With the high sensitivity and high resolution of the CO intracavity Laser Magnetic Resonance spectrometer, the high-resolution spectra of the rare isotope molecule ~(15)N~(16)O in natural abundance were successfully observed, which provided experimentai data for the analysis of the hyperfine structure of NO molecule.

通过对中红外CO内腔激光磁共振光谱仪的改造，我们大大提高了该谱仪的探测灵敏度和分辨率，并成功用于探测NO稀有同位素分子~(15)N~(16)O的超高分辨光谱，为该分子的超精细结构和Λ-双分裂分析提供了实验依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。