【判断题】制冷系统的冷却介质是不能中断的,否则会造成积热,工质温度与系统压力骤增,引起爆炸。
【单选题】用海水作为冷却剂冷却淡水、滑油、增压空气,这在系统布置上属于__________.
【单选题】NA系列增压器是MAN B&W开发的轴流式废气涡轮增压器,它与VTR系列增压器相比较,其结构特点是______。1使用内支承轴承结构2使用外支承轴承结构3加长涡轮机叶片提高了叶片效率4增压器轴承箱为非冷却式5压气机进气壳为冷却式
【简答题】据柴油机所需冷却的零部件、机油及增压空气的不同要求,冷却水系统分为高温冷却水系统和()冷却水系统。
【单选题】Paul seems ________ Chinese before he came here.
【单选题】—Paul seems upset today. —Yes,he wrote an application letter to Neusoft but waited__________for a reply .
【单选题】在废气涡轮增压系统中,有中冷器,其作用为()。
【单选题】听力原文:W: It seems Paul doesn't make any progress in science. M: If Paul were my son, I'd just not worry about him. You are already giving him special help after school, you say, so I doubt he'll fail t...
A.
Consult the science teacher.
B.
Improve the teaching skills.
C.
Stop teaching Paul after class.
D.
Take it easy and let it be.
【判断题】在废气涡轮增压系统中通常采用空气冷却器作为中间冷却器。