对载运散装液化气体船舶,液货舱的液位测量形式有几种?
查看答案
The rate of heat transfer from a hot region to a cold region is affected most by the ().
A. size of the heat sink
B. temperature difference between the regions
C. size of the heat source
D. total heat of the system
2002年8月第23届国际鸟类学大会是在中国举行的第几届国际鸟类学大会?
液力组件上超压释放活门的设定值是()
A. 大于3550PSI打开,小于3550PSI关闭
B. 大于3200PSI打开,小于3200PSI关闭
C. 大于3550PSI打开,小于3200PSI关闭
D. 以上全不对