The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（） dropping lube oil for lubrication, reducing the pollution to the sea。 setting a temporary gravity oil tank and enhanced the position properly。 lubricating with the used lube oil。 lubricating with the fresh water and navigation in a lower speed。
A carling is used aboard ship（）. as a connecting strap between the butted ends of plating。 to stiffen areas under points of great stress between beams。 to prevent the anchor from fouling when the brake is released。 to provide an extra heavy fitting in a heavy lift cargo rig。
在Windows XP下，软盘上被删除的文件（）。 还可用“回收站”恢复。 不能用“回收站”恢复。 一定能用“回收站”恢复。 如恢复删除的文件要看运气。
船舶电站是由什么组成的？
在项目处于（）时，可采用经验估算法和专家判断法。 工作细节确定。 完成。 定型。 选择和计划。
境外纳税人拟采用国外汇款方式缴纳税款，汇款用途（附言）无须注明下列哪一事项（）
