活塞式制冷压缩机有哪些优、缺点?
Mazda21.5LAT标准型的油箱容积是多少?() ["43L","50L","55L","60L"]
()是Al(OH)3在较高温度下焙烧的产物,()是Al(OH)3在较低温度下焙烧的产物。
Mzda31.6L天窗版的综合油耗是多少?() ["8.3L","5.9L","6.0L","6.4L"]
通常情况下,在A3海区发送船到岸遇险报警的设备是()。 ["A.MFDSC设备","B.SES设备","C.406MHzS-EPIRB设备","D.B和C"]
什么是调入设计图样?