electric rotating switch
常見例句
- The electric toothbrush comprises a protecting cover, a rotary brush head, a rotating shaft, a power handle and a control switch.
它包括保護(hù)罩、鏇轉(zhuǎn)刷頭、轉(zhuǎn)軸、動(dòng)力手柄和控制開關(guān)。
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