Acne is not caused by dirt or surface oil.
痤疮并不是由灰尘和体表的油引发的。
Remove scale, in the process of assembly parts surface oil, in case of rust.
去掉氧化皮，装配过程中零件表面涂上油，以防锈蚀。
These algae now release their oil, which floats to the surface of the culture vessel.
现在，这些藻类可以释放出藻类油，藻类油能漂浮到培养容器的水面上。
Apply slushing oil to the metal surface.
将防锈油涂在金属表面。
It also spreads like oil on the water's surface.
而且它们也会像石油一样在水面上扩散开来。
There are probably huge quantities of crude oil beneath the surface.
在其地表下可能有大量原油。
The surface of the clothes should also be treated as oil and water repellent.
衣服的表面需特殊处理具有防油防水功能。
We put up at the surface an oil derrick.
我们就在那块地面上竖起一个井架。
Disposing oil is broadly applied in iron and steel surface treatment.
除油是钢铁工件表面处理最为常见的工序。
The surface must be clean, dry and free from loose materials, oil, grease and other.
被涂表面必须清洁、干燥、无油脂或其他油污、无松散涂层。
Brush or spray the surface with oil.
然后在表面刷上或喷上油。
Surface tension is one of the important control parameters of the ceramic squeegee oil.
表面张力的控制是陶瓷印油产品的主要控制指标之一。
Substrate surface must be clean dry and no oil.
将要施涂的表面必须完全干净、干燥及无油脂。
Clean water, oil, rust, dust and other filths before spraying the paint on the surface.
喷涂前应先把被涂物表面之 水份、油脂、铁锈、灰尘及附着污物清除干净。
Accordingly, under oil pressure, the main oil seal surface can work.
因此主封油面是处于油压下工作。
If the track surface skid pollution starts, oil should be clear;
若轨道面有油污造成启动时打滑，应清楚油污；
There is a big oil ball on the surface of yolk-sac of perch.
胚胎卵黄囊表面有一个大圆形油球。
Role of surface of unconformity in formation of oil or gas reservoirs;
根据地层型油气藏与不整合面的关系首次提出“不整合体”的概念。
Fully dry and clean on the surface. To avoid oil, grease and dust.
施工表面完全干燥、清洁，避免油污、灰尘。
The base surface must be sound, clean, smooth, no oil, dust and other loose animals.
面必须坚固、干净、平整，无油污、浮尘以及其它松动物。
The best oil floats above the surface, while the best honey sinks onto the bottom.
最好的油浮在上面； 最好的蜜沉于底部。
This article oil-proof is ineffective, to the surface that have oil-proof request should carefully process.
本品防油效果不佳，对有防油要求的表面应谨慎处理。
Its surface with a wear resistance, anti-oil, easy to clean and so on.
其表面具有耐磨性，抗油污，易清洗等优点。
Oil on its rugged surface, a slight massage effect.
其布面凹凸不平，有轻微的按摩作用。
Oil on its rugged surface, a slight massage effect.
其布面凹凸不平，有轻微的按摩作用。
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