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。
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。
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。
应用推荐