Technician was adjusting air valves on pallet elevator behind the safety guard.

该技工实际上是在调整安全装置后面的托盘货物升降机的气阀.

The L1 Series air valves offer speed and high flow capacity in a compact design.

空气阀的L1系列提供高速及高容量紧凑型设计流程中。

Set up a mathematical models for the calculation of hydraulic transients on the basis of the boundary conditions of air valves.

针对空气阀结构特征，建立其进、排气边界条件；

Commercial WIT systems consist of stand-alone water-delivery hardware with pressure, temperature, and flow controls. The control also operates water and air valves in the tooling.

商业水辅注射系统有独立的带有压力、温度和流量控制器的注水机构，这个控制器也控制模具内的水和气。