pump barrel line 泵缸套
Automatic barrel line 全自动桶装生产线
Line Barrel 武装机甲 ; 分身战士
wire line core barrel 绳索取心筒
No sooner had I swung the barrel of the gun into line with the intruder than the room got very, very cold. So cold, in fact, that I could see my breath in the moonlight streaming through the curtains.
我还没来得上膛瞄准那个人便感觉到房里变得非常冷，冷到在从窗帘透进来的月光中，我都能看到自己呼出来的气，我浑身冰冷。
The outer barrel of the syringe should be transparent enough; bench line can be seen distinctly.
注射器外套应有足够透明度，能清晰地看到基准线。
Gun barrel is a thick and hollow part which is composed with three characteristic surface: line chamber, chamber, outside surface.
枪管是一种厚壁空心管件，由线膛、弹膛、外表面三部分组成。
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