Studies of the C and H isotopic composition of natural gases of continental origin will provide valuable information on the prospecting and development of natural gases of different genetic types.

通过对我国陆相成因天然气碳、氢同位素研究，探讨其同位素组成特征及其意义，从而为各种成因类型天然气的勘探开发提供了有益的信息。

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Computer consists mainly of c, memory, input devices and output equipment parts composition.

计算机主要由C、存储器、输入设备和输出设备等部件构成。

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Using GC/C/MS online carbon isotope analytic technic, abundant imforma- tion about single molecular carbon isotope composition can be taken from micro-samples(chromatographical scale).

MS 在线碳同位素分析技术，能够从微量样品（ 色谱量级）中获得丰富的单分子碳同位素组成信息。

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