原料气各物质的比例不同,可以制备不同碳氢比的合成气。
Different feed gas ratio could produce synthesis gas of different H/C radio.
因为质量比地球小的行星迁移速度缓慢,所以他们更易于在气盘中存活。
Planets smaller than Earth can easily survive in the disk because they migrate slowly.
天然气的隐性成本比煤炭要低不少。
更多地使用天然气是显而易见的选择,因为天然气比石油供应量大且更便宜。
Using more natural gas, in oversupply and cheap relative to oil, is an obvious choice.
天然气期货也比一年前上涨了3.4%。
气相的组分比。
页岩气现占美国天然气量得百分比从05年的4%增长到了23%。
Shale now provides 23% of America's natural gas, up from 4% in 2005.
天然气比加利福尼亚便宜一美元。
据估计,木材消耗的速度比石油和天然气更快。
It's been estimated that wood is running out more quickly than oil and gas.
天然气远比煤炭要清洁,碳排放量比煤炭低45%。
It's far cleaner than coal and it emits 45% less carbon than coal.
6过滤速度即气布比。
6过滤速度即气布比。
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