冲转前,减小转子__的有效方法是较长时间的连续__
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凝汽器的端差是指凝汽器压力下的__与凝汽器__温度之差
凝汽器排汽温度高于__投低压缸喷水减温,低于__退低压缸喷水减温
汽轮机危急遮断器动作转速为__r/min,复位转速为__r/min
备用信用证适用的国际惯例为()
A. International Standard Banking Practice
B. International Standby Practices
C. Uniform Rules for Bank-to-bank Reimbursements under Documentary Credits
D. Uniform Rules for Standby Letter of Credit