到婚嫁年龄
发表于 2025-3-25 03:56:16
Detergents/dispersants,A lubricant must provide the following basic functions:
Conjuction
发表于 2025-3-25 09:35:35
Aviation lubricants,There are three factors which dominate all aspects of aircraft design. The first is the need for the highest possible reliability. With a few minor exceptions, aviation is the only activity in which it is impossible to stop to investigate or rectify a failed mechanism on the spot.
隐士
发表于 2025-3-25 15:42:40
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宣誓书
发表于 2025-3-25 18:01:01
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几何学家
发表于 2025-3-25 21:53:59
Trung Q. Duong,Nguyen-Son Vo,Van Ca Phanc compounds, e.g. molybdenum disulphide, boron nitride, tungsten disulphide and many other chemicals and materials, (ii) solid organic compounds and materials, e.g. phthalocyanine and tetrafluoroethylene, (iii) chemical conversion coatings, and (iv) soft metals.
王得到
发表于 2025-3-26 01:43:43
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Explosive
发表于 2025-3-26 06:49:30
Industrial lubricants,c compounds, e.g. molybdenum disulphide, boron nitride, tungsten disulphide and many other chemicals and materials, (ii) solid organic compounds and materials, e.g. phthalocyanine and tetrafluoroethylene, (iii) chemical conversion coatings, and (iv) soft metals.
Latency
发表于 2025-3-26 11:42:31
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OTTER
发表于 2025-3-26 13:05:23
On the Poetics of Incorporation,ing in liner temperatures of over 200°C. The fuels burned include poor quality residual fuels with viscosities of 100 cSt at 80°C, sulphur contents of 4% or more and carbon residues of up to 22% wt. In addition, the crankcase oil charge is simply topped up and only drained if excessively contaminated.
inflate
发表于 2025-3-26 17:59:56
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