启动时发动机MAP读数与大气压读数无差异。
No difference recognized between the engine MAP reading and the barometric (atmospheric) pressure reading at start-up.
注：采用任何轮胎气压表也可以检查ET膨胀罐气体压力的准确读数。
NOTE: To get an accurate reading when checking et Tank air pressure with any tire gauge either.
每小时记录气压计读数，并注意观察海况和风情。
Read and note the barometer every hour, and keep watch to seas and winds all the time.
空盒气压计读数亦须作温度改正和湿度改正。
Aneroid readings must be adjusted for temperature and humidity.
我再次查看了气压计，现在的读数远远低于上一次的读数，而且读数还在继续迅速下降。
Checking the barometer again, showed a massive fall in pressure from the last reading and it was falling fast.
气压计的读数开始下降。
气压计的读数开始下降。
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