There are many factors influencing spontaneous combustion in goaf and their relative essentialities are different.采空区自然发火的影响因素很多,各因素之间的相对重要性不同.The disease has an unpredictable course with exacerbations and spontaneous re...
By the time they finish, the crewmen are standing ankle-deep in fish guts.到他们完工时，船员站的地方鱼内脏已堆至脚踝。Crewmen aboard the tanker sighted a ship in distress off the coast of Senegal.油船上的船员们在塞内加尔的近海发现了一艘失事的船.The crewmen were chee...
These ships are based on the Chinese Jiangwei II class frigates.这些战舰是基于中国的江卫II型护卫舰.It is said that frigates have 30 archer missile pods.一般来说护卫舰有30个射手导弹发射舱.Malaysia took delivery of two submarines, six frigates and 26 fig...