Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from (). within the space concerned。 outside the space concerned。 the throttle station。 within the fire room。
压缩介质为天然气的往复压缩机容易出现由于()而引起压缩机排气温度高、压力低。 碳析出。 水析出。 杂质。 凝液析出。
Because most,if not all,of the evidence()the carrier,the burden of proof soon shifts to the carrier,once the claimant has made initial proof of improper care. are available for。 is available to。 are available to。 is available for。
As long as the vessel is capable of performing the service immediately required,hire will (). cease to be payable。 begin to be withdrawn。 continue to be payable。 be returned。
Which of the following statements about pump operations is NOT a correct statement?() In order for a fluid to be pumped, a fluid must be made to flow。 A substance must be cold in order for it to be pumped。 The kinetic energy imparted by the pump can be used to force a liquid through a hydraulic system。 A pump must receive its energy from an external source。
往复压缩机排气压力降低,与()关闭不严无关。