base knob
常見例句
- The knob (1) has a cylindrical base with a center axis, where the knob is rotatable around the center axis.
所述手柄（1）具有柱狀的基躰，竝 且能夠繞著柱狀的基躰的中心軸線鏇轉(zhuǎn)。
ip.com - Members of the program locate a vehicle by smart phone or on the Web, hold a special card at the base of the windshield—kind of like swiping one of those new room keys above the door knob at fancy hotels—then drive off.
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