主题：【原创】孟良崮上水机关 -- 萨苏

我查到美国的M1917机枪就加配了，作用一是省水，二是防止暴露目标(估计指的是隐蔽状态下)

http://website.lineone.net/~hollis_wood/doughweb/browning.html

...Initially no water condensation can was provided- but after taking advice from the British the Americnas soon developed a water chest that was identical in size to the standard Ammo boxes. The Water chest connected to the Front Hose outlet on the water jacket, when the cooling water boiled under continuous fire conditions The steam was directed down a hose to the condenser chest. The water in ths way could be saved and recycled. Obviously this was an important consideration in trench warefare where water was a scarce commodity, also the system eleviated the tell tale plumes of steam that could give away a gunners hidden position to the enemy.