化工英语翻译-开工词句？ 1.with the nitrogen ball valve slightly opened, loosen the 4 bolts that clamp the slide valve closed， and with nitrogen flowing out of the gap, push the slide valve across to its open position 当氮气球阀稍微打开，松开夹住滑板关闭滑板阀的螺栓，随着氮气从缝隙中流出，把滑板阀推到其打开位置。 2.remove the cover from the catalyst charge line. 移除催化剂注入线上的盲盖 3.the flow of catalyst to the reactor is controlled by in-line coriolis meter 730fcsa30302 for d-73021a, respectively 730fcsa30312 for d-73021b. the flow meter computes fq, the quantity of catalyst fed over 2 minutes (variable), and averages it over the measured time interval. this is used as the process value for three-way dosing valve 730fv30302/30312. 到反应器的催化剂流量分别由用于d-73021a的在线科氏力流量计730fcsa30302和用于d-73021b的730fcsa30312控制。流量计计算累积量，即2分钟内的催化剂进料量（可变）并计算在测量时间间隔上的平均值。该值用作三位定量给料阀的过程值。 4.if the operation is to be carried out with the plant on line, feed the catalyst solely from the metering pot that stays on-line.如果该操作在装置在线时完成，仅从在线的计量点加注催化剂。 [ ]查看更多
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