最后是一种叫做油母质的大分子化合物。
And macromolecular clumps of organic material called kerogen.
大部分的香薰油母你觉得不冷杂货店喘不过气来。
Most of the aromatherapy carrier oils you find in grocery stores are not cold-pressed .
在溶剂甲苯中加入少量供氢组分后，油母转化完全，油类产物产率高。
With supercritical hydroextraction, in which an H-donor is added to the supercritical toluene, a complete recovery of kerogen with high oil yield is possible.
高丰度脂肪酸甘油—酯的存在，提出生物油脂是这些原油的重要成油母质。
In particular, the presence of abundant fatty acid glycerol monoethers indicates that biological oil and fat have an important contribution to the crude oils studied.
侏罗系煤中特定的生油母质、有机质成熟度及排驱机理决定了煤成油的重质、高蜡和高粘度特点。
The coal-formed oil is characterized by heavy end components, high wax content and high viscosity which is determined by Kerogen, maturity and expulsion mechanism in the coal-bearing Jurassic.
需焊接或热切割的表面应排除所有可能会损坏焊材或母材的杂物，如脂、油、灰尘、水垢、熔渣和油漆等。
Surfaces to be welded or thermally cut shall be cleaned of all foreign material such as grease, oil, dirt, scale, slag and paint that would be detrimental to either the weld or base material.
钻工用合适的丝扣油涂抹接头母扣。
The Floormen apply proper pipe dope into the thread box of the pipe joint.
钻工用合适的丝扣油涂抹接头母扣。
The Floormen apply proper pipe dope into the thread box of the pipe joint.
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