The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell （）<br>A:pressure does not fluctuate rapidly<br>B:pressure remains steady and unchanged<br>C:brine density does not exceed 1~5<br>D:brine density is too low

The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell （）
A:pressure does not fluctuate rapidly
B:pressure remains steady and unchanged
C:brine density does not exceed 1~5
D:brine density is too low

出自：海船船员证

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