The vacuum pumps begin sucking the air from the barrel of gun.

真空泵开始抽取电子枪管里的空气。

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Oil bath of air filters for a steel plate of vertical barrel container.

油浴式空气过滤器为一个钢板制成的立式圆桶容器。

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A seal is provided between the plunger and barrel to prevent air from passing into or out of the barrel around the plunger and through the plunger end.

在柱塞和针筒之间具有密封件，以防止空气进入或跑出柱塞周围的针筒以及穿过柱塞端。

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The wood absorbs about 3 gallons of spirit, now we have headspace in the barrel and air gets pulled in, which we love.

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This somewhat dangerous device had a six foot barrel, was made out of PVC irrigation pipe of varying diameters, and was powered by compressed air.

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The bottlenose dolphins were moving in several groups of 15 to 20, their dorsal fins and barrel shaped torsos flashing in the sun as they came up for air.

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