气体常数 [热] gas constant ; gas law constant ; constant for gas
计数气体 counting gas
气缸数 [机] Number of cylinders ; cylinder number ; Cylinders
数值天气预报 numerical weather prediction ; NWP
对数气压坐标 log-pressure coordinate
参数气象学 [气象] parameteorology
全国建材家居景气指数 BHI
气数 fate ; destiny
电气参数 Electric Parameter ; Electrical data ; Electrical Parameters
低通气指数 AHI ; Apnea Hypopnea Index ; apnea and hypopnea index ; hypopnea index
因勘探不足，该国的潜在石油和天然气储量在很大程度上仍是个未知数。
A lack of exploration means the country's oil and gas potential remains largely unknown.
五年后他回到家，不再是那个能翻山越岭、并扛着沉重的化石一口气行走数英里的健康小伙儿了。
After five years he was home. He was never again the healthy young man who climbed mountains and carried heavy bags of fossils for miles.
他表示全面投产究竟对矿物沉积层会造成怎样的影响和必须注入什么样的水和天然气混合物才能维持生产还都是未知数。
What is still unknown, he says, is how full production will affect the deposits, and what mixture of gases and water must be injected to maintain their output.
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