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1·If you are blending oils, you will need a dropper pipette for each raw oil you use.

如果需要混合精油，还需要一根滴管来吸取你要用的精油。

2·Make sure you add them to a clean container, and use a separate dropper pipette for each raw oil, otherwise you will mix them in unexpected ways.

一定要把它们加到一个干净的容器里，然后每种精油原料都各用一支滴管来吸取，否则的话，你就用其它非常规的方法来混合它们。

3·Oil sludge is produced in the process of raw oil dehydrating in oil field corporations and oily sewage disposal in the petrochemical industry factories.

含油污泥主要产生于油田企业对原油脱水以及油田和炼油厂等石化行业的污水处理部门对含油污水的处理过程中。

4·As increasing of heavy oil component in raw oil and rising of light oil yield, this result in stricter requirement for lift pipe reactor of oil refining unit.

由于原料油不断重质化，而且要求轻质油收率不断上升，因此对炼油装置提升管反应器的要求更加苛刻。

5·Esterification and transesterification are the most common methods of producing biodiesel. It is important to select an appropriate catalyst based on the properties of raw oil.

酯化及转酯化法是目前研究最多、最具优势的生物柴油制备方法，根据原料特性选择合适的催化剂是该法成功的重要保证。

6·The results of industrial standardization showed that the decrease of dry point of raw oil and space velocity was favourable to the decrease of olefine content in the solvent oil.

工业标定结果表明，降低原料油干点和操作空速对降低溶剂油产品烯烃含量有利。

7·The utility model can efficiently prevent air locking phenomena and the eccentric wear of the plunger, increase the production quantity of raw oil and extend the service life of the oil well pump.

本实用新型可有效地防止“气锁”和 柱塞偏磨，提高原油产量和抽油泵的使用寿命。

8·The raw material for the tyre is a byproduct of oil refining.

这种轮胎的原料是汽油提炼的副产品。《柯林斯英汉双解大词典》

9·The prices of raw materials, including glutinous rice, sugar, and edible oil, have risen 25% this year, causing a spike in rice dumpling price.

今年以来，糯米、糖、食用油等原材料的价格持续上涨了25%左右，导致粽子的价格水涨船高。

10·Some oil firms do this already to carbon dioxide that forms part of raw natural gas.

许多石油公司已经这样做了，将二氧化碳变成天然气的一部分。