A sort of novel dispersant by the reaction of PIBSA with aminosalicylic acid is used for low or medium-speed diesel engines, with evident effect on solving problem of "black paint".
PIBSA与胺基水杨酸反应合成的一种新型分散剂，应用到中低速柴油机中，对解决“黑漆”现象效果明显；
This paper describes main reinforcing methods for crankshafts of medium -bored high - speed diesel engines.
本文概述了中等缸径高速柴油机曲轴的主要强化方法。
The materials have been widely used to make valve seats for most medium-and high-speed diesel engines at home and abroad.
近来随着引进国外柴油机新技术和新型柴油机，气门座材料趋于含碳量、铬量更高，甚至于采用高碳、高铬多元合金的镍基材料。
The BSP is an electrically driven machine for grinding of valve spindles on high and medium speed diesel engines.
我们公司生产的这款BSP阀杆研磨机，是一款电子驱动设备，主要用于高速和中速柴油发动机阀杆的研磨。
Basic knowledge of medium to low speed diesel engines will be an advantage.
具有低速度柴油机知识者优先。
Basic knowledge of medium to low speed diesel engines will be an advantage.
具有低速度柴油机知识者优先。
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