大口径阀门采用系列aw型气动执行器拔叉式传动，结构合理，输出扭矩大，有双作用式和单作用式。
AW series of large diameter valves using pneumatic actuator fork-type transmission, reasonable structure, output torque, a double-acting and single acting.
目的观察急性闭角型青光眼手术前后应用双氯芬酸钠的作用。
Objective To observe the effects of diclofenac sodium used before and after operation in acute close-angle glaucoma.
固化反应过程及固化机理与促进剂作用下酸酐固化双酚A型环氧树脂的反应基本相同。
The reaction process and curing mechanism were basically identical to the curing reaction of bisphenol A epoxy resin with anhydride in the presence of accelerator.
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