...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 results show that the surfactants added and the surface active substances from effect the losser.结果发现除了一般的浮选条件以外,废纸浆中的表面活性剂和来自废纸的表面活性物质与浮选损失有着重要的关系....