挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engines are particularly susceptible to dissolved gas in the propellants.石墨甚至其线性类似物, 聚 ( 名聚-苯撑 ) 都是极难溶解的.Graphite and even its linear counterpart, poly ( p - phenylene ) are too inso...
A coral reef is built by the accretion of tiny, identical organisms.珊瑚礁是由许多相同的微生物不断堆积而成。This is the identical knife with which the murder was committed.这就是谋杀时所用的刀子。Results: The procedure of exposure aneurysm was identica...