查询词典 petroleum

When the glue has dried, liberally grease the stopper with petroleum jelly, and slide it into the pipe.

当胶水已干，宽松的油脂塞子与石油果冻，及幻灯片把它管。

Pack it with peanut butter. Smear it with petroleum jelly and hold it under water.

拿一个出来，展开，包上花生酱，涂上润滑油，抓住放进水里。

Salicylic acid and other wart treatments also destroy healthy skin so it is important to protect the skin around the wart - use petroleum jelly or a corn plaster to cover it.

水杨酸和其他疣的治疗也破坏健康的皮肤，所以这是很重要的，以保护周围的皮肤疣-使用石油果冻或玉米石膏，以支付它。

Oil-based lubricants, creams, baby oil or petroleum jelly should not be used with latex condoms.

石油为基础的润滑油，霜，婴儿油或石油果冻不应该用在乳胶避孕套。

The process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的过程；把石油分子分解成更小的分子并提取低沸点的分馏部分的过程。

In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene

石脑油馏份与一个热表面接角，就裂解而得到乙烯和丙烯。

The most important route to produce these unsaturated hydrocarbons is by steam cracking, using principally petroleum gases or naphtha as feedstock.

生产这种不饱和烃类最重要的路线是靠蒸汽裂解，主要以石油气体和石脑油作原料。

Whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的''。'过程'。''；把石油分子分解成更小的分子并提取低沸点的分馏部分的''。'过程'。''。

Results showed that under the conditions of a reaction temperature of 60 ℃,a reaction time of 6 h and a catalyst consisted of 1.0% BF3-ether and 1.5% AlCl3,the yields of aromatic solvent naphtha and petroleum resin...

结果表明，采用两段聚合法，在催化剂三氟化硼乙醚络合物质量分数1.0%、三氯化铝质量分数1.5%、聚合温度60℃、聚合时间6h的条件下，芳烃溶剂油收率为71.1%，石油树脂收率最高可达20%；同时所得的芳烃溶剂油切割为120号和200号溶剂油，指标达到行业标准。

Ethylene unit ; 9 carbon ; aromatic hydrocarbon ; solvent naphtha ; petroleum resin

乙烯装置； 9碳；芳烃；溶剂油；石油树脂

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。