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vacuum heating
释义
vacuum heating
vacuum heating
[
′vak·yəm ′hēd·iŋ
]
(mechanical engineering)
A two-pipe steam heating system in which a vacuum pump is used to maintain a suction in the return piping, thus creating a positive return flow of air and condensate.
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drive to excellence
drive to the brink
drive to the edge
drive to the wall
drive to web
drive train
drive-train
drivetrain
drivetrain and suspension
drivetrains
drive tray
drive tube
drive type
drive up
drive-up
drive-up teller window
drive up the wall
drive-up window
drive us around
drive us around the bend
drive us away
drive us back
drive us back on
drive us back to
drive us batty
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更新时间:2026/10/3 7:25:43