笨拙的你
发表于 2025-3-25 05:49:56
increasing complexity. The impetus for lubricant development has arisen from need, so lubricating practice has preceded an understanding of the scientific principles. This is not surprising as the scientific basis of the technology is, by nature, highly complex and interdisciplinary. However, we be
不能平静
发表于 2025-3-25 11:33:49
https://doi.org/10.1007/978-3-030-17860-4ing 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.
Lice692
发表于 2025-3-25 14:32:31
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micronized
发表于 2025-3-25 19:01:47
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Relinquish
发表于 2025-3-25 20:09:39
Marine lubricants,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.
闲荡
发表于 2025-3-26 00:23:48
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DEBT
发表于 2025-3-26 08:02:03
Friction, wear and the role of additives in their control,81, distinguished between static friction, the force required to start sliding, and kinetic friction, the force required to maintain it. He showed that kinetic friction is lower than static friction and is nearly always independent of the speed of sliding.
GRAZE
发表于 2025-3-26 11:04:37
Quantitative Methods for ManagementThree factors 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.
乱砍
发表于 2025-3-26 13:38:31
Aviation lubricants,Three factors 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.
CONE
发表于 2025-3-26 17:51:04
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