西气东输的英文：
transport the natural gas from the West to the East

参考例句：

Will proceed with the project of transmitting natural gas and electricity from western to eastern regions
实施"西气东输","西电东送"

While resources are regarded as the key to the success of the project, market is the focal problem to be tackled
如果说，西气东输工程成败的关键在资源，那么，核心便是市场。

transport是什么意思：
v. 运输，运送；使身处他境；流放；使狂喜
n. 运输，运送；交通工具；运输工具；运输系统；狂喜；流放犯

To transport by boat.
用船运输

transportation leakage
运输漏损量

He was sentenced to transportation for life.
他被判处终身流放。

natural是什么意思：
adj. 自然的；天然的；不做作的；天生的；原始的；有血缘关系的
n. 天然物；生就具有特定才能的人

natural | natural sign
白键|本位记号

The method is a natural.
这方法一定灵。

Is there necessity in nature?
自然界是否存在必然性？

gas是什么意思：
n. 气体；煤气；毒气；汽油
v. 放出气体；加汽油；用毒气杀伤（人）

development of gas
放出气体；放出毒气

This gas mask can immunize you against poison gas.
防毒面具能使你免遭毒气袭击。

long-distance gas
远程供应的煤气[天然气]