The results show that valve-sieve compound trays have smaller turndown ratio and smaller capacity.
试验结果表明：浮阀筛孔复合塔板操作弹性小、气液处理量小；
2
Unscrew the nut from the service connection of suction line valve and connect the compound pressure gauge.
将真空泵连于复合压力表，打开复合压力表和真空泵对室内机和连接管抽真空。
3
The formulation of the valvecompound for tubeless tire was investigated in terms of polymers, curing systems, antioxidants and reinforcing agents as well as mixing technology.