hand setting

常見例句

• He finally removed his hand from the voltage control.
  他終於把手從電壓蝶上拿開。
• Butterfly dampers can be actuated pneumatically, electrically or manually by a simple hand lever.
  蝶型檔板可以採用氣動和電動，或採用簡單的手柄實現(xiàn)手動。
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