7.

已知甲城市的大气压为760mmHg,乙城市的大气压为750mmHg某反应器在甲

操作时要求其真空表读数为600mmHg,若把该反应器放在乙地操作时,要维持与甲地

作相同的绝对压,真空表的读数应为多少,分别用mmHg和Pa表示

90jnnhg. 7.

参考答案与解析：

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