Automotive - engine lubricating systems are of the pressure - feed type.汽车发动机的润滑系统采用压力供给式.In the present chapter, the emphasis is mainly on lubricating oils for internal combustion engines.本章着重讨论用于内燃机的润滑油.Complex calcium...
Easy operation and maintenance, reliable and lubricating system and protection unit of guideway.机床操作、维护方便.配置有可靠的没头润滑系统和导轨防护装置.Conveyance bearings and other hemp wipe part of of infusing into and lubricating fat.运输类的轴承及其它...
I had neer seen a weighted, jangling, belly-swollen giant flop down a chimney and gaily dispense his largesse under a Christmas tree.我从来没见过一个沉重的、叮当响的、大腹便便的巨人扑通跳进烟囱，在圣诞树下快活地分发赐赠。...grateful recipients of their largesse.对他...
A good sharp dressing counterpointed the sweetness of the dried fruit.味道浓烈的上好调味品和香甜的干果形成有趣的对比。Florida oranges have a natural sweetness.佛罗里达柑橘带有一种天然的甘甜。a smile of great sweetness十分甜蜜的微笑...
Lichens, which grow slowly and live for many years, result from fungi and algae living together.地衣类植物生长速度慢,有好几年的寿命.其生长依赖于霉菌和海藻的共生.The canvas is also water - proof, cold - resistant and fungi - proof , thus meeting the ap...