1.
Study on New Preparation Technology of Bio-diesel from Oils;
天然油脂制备生物柴油新技术的研究
2.
Natural Oils and Fats:Best Choice for Growing Surfactant-basedConsumer Markets;
透视天然油脂和油脂基表面活性剂的市场
3.
Naturally occurring rock oil is referred to as crude oil or petroleum.
天然形成之石油，我们称作原油或石油。
4.
Tubing is used to extracting petroleum and natural gas from a well.
油套管用于油井中抽取石油或天然气。
5.
associated gas: Gas deposit capping an oil deposit.
伴生天然气:油田上面的天然气储层
6.
oil and gas severance tax
原油及天然气开采税
7.
Natural gas is often present in the reservoir rock.
储油岩中常有天然气。
8.
estimation of oil and gas reserves
石油和天然气储量计算
9.
oil and natural gas map
石油和天然气分布图
10.
"fossil fuels: coal, oil, and natural gas"
矿物燃料(煤、石油、天然气)
11.
Coal and oil are natural products.
煤和石油是天然物产。
12.
concentrate of natural essential oils ,in fats or fixed oils
脂肪或固定油中的天然香精油浓缩物
13.
Natural Resources: crude oil, natural gas, limestone, fish.
自然资源：原油、天然气、石灰石、鱼。
14.
a naturally occuring glyceride of oleic acid that is found in fats and oils.
天然形成的油酸甘油酯，见于脂肪和油脂中。
15.
Apart from coal, the most important natural fuels are gas and oil .
除了煤以外，最重要的天然燃料是天然气和石油。
16.
This result is achieved by oil/oil or gas/gas correlation.
通过石油／石油或天然气／天然气的对比便可得到这个结果。
17.
A natural or synthetic ester of glycerol and fatty acids.
甘油酯以甘油和脂肪酸天然存在的或合成的酯
18.
Gas recovery from heavy oil reservoir with gas cap of Block Gao 3.
高3块气顶稠油油藏天然气采收率研究