内建的电池电量。
Built-in tire gauge: dial gauge.
内置轮胎压力表：千分表。
A built-in pressure regulator air flow meter and pressure gauge is used to control and monitor the air flow and pressure through the ozone generator.
内装气压计、空气流量计和压力表用于控制和监测通过臭氧发生器的气流和压力。
A built-in pressure regulator air flow meter and pressure gauge is used to control and monitor the air flow and pressure through the ozone generator.
内装气压计、空气流量计和压力表用于控制和监测通过臭氧发生器的气流和压力。
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