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把泵压保持在20兆帕以下。
Keep the pump pressure under 20mpa.
youdao
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杯子成型需要气压提供，正常气压为6 - 8兆帕。需要配三立方空压机。
Glass forming pressure needed to provide air pressure, the normal pressure is 6-8 MPa.
youdao
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杯子成型需要气压提供，正常气压为6 - 8兆帕。需要配三立方空压机。
Glass forming pressure needed to provide air pressure, the normal pressure is 6-8 MPa.
youdao