这两句话怎么翻译好啊? 'bench setting' shall be avoided by the use of adequately sized actuators. 使用适当地尺寸的调节器来避免' bench setting' valve actuators shall be sized for the maximum upstream pressure with the downstream pressure taken as zero 阀调节器的选用条件为当下游压力为0时的最大上游压力查看更多