...the submarine's propulsion system.潜水艇的推进系统We were trying to plot the course of the submarine.我们试图标绘出潜艇的航线图。...submarine caves.海底洞穴Submarine and carrier aircraft were the menaces the great guns could not fight.潜艇和...
He detected a ship moving down the starboard side of the submarine.他发现有一艘船正在潜艇的右侧航行。We were trying to plot the course of the submarine.我们试图标绘出潜艇的航线图。In contrast with its surface fleet, Britain's submarine force was ...
The main products of the company: Tetrabromobisphenol A, brominated epoxy.公司主要产品品种: 四溴双酚A 、 高分子溴化环氧阻燃剂.A new method for determining the bromine content in brominated polystyrene was studied.提出了测定溴化聚苯乙烯中溴含量的方法.The sample ...