base knob

常见例句

双语例句

• 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）具有柱状的基体，并 且能够绕着柱状的基体的中心轴线旋转。
  ip.com

权威例句

• 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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