以下红字处该如何翻译? 1 、 the antisurge valves should be closed in the specified flow range referring to normal head. 2 、 the compressor vendor must ensure that significant pressure drops inside the battery limits are included in the performance data. reference is made to attached sketch. 3 、 water in recirculating gas: during abnormal operation up to 1000 ppm water vapour may be present. 4 、 the start-up case is defined as follows: for the make-up gas section the head must be as specified with compressor running at minimum speed required and minimum stable flow - that is at the control line. for the recirculation section, the inlet conditions must be as specified with the compressor running at stable flow - that is at the control line and with kick-back valve closed. 查看更多