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传动机构选择性地控制开口与阀口对准的持续时间。
A gearing mechanism selectively controls the duration in which the openings are aligned with the ports.
youdao
-
传动机构选择性地控制开口与阀口对准的持续时间。
A gearing mechanism selectively controls the duration in which the openings are aligned with the ports.
youdao