弹筒型阀可以安装到一个驱动器端口。
A cartridge-type valve can be installed into an actuator port.
他知道在荒原中是不会有海或者船只的，正像他已经知道在他的空枪里没有弹筒一样。
He knew there were no seas or ships in the heart of the barren lands, just as he had known there was no cartridge in the empty rifle.
弹筒式直结主轴：主轴与主轴马达为减少传动连结所产生的误差与震动，采用一体式直接设计，并采用高精密abect。
Barrel type straight spindle: spindle and spindle motor to reduce the transmission link error and vibration, the use of integrated direct design, and the use of high precision ABECT.
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