orienting knob

英 美
  • 方位手柄
  • knob n.旋钮;把手;瘤;节;圆丘
  • orienting adj.定向的动词orient的现在分词形式.
    1. Twist the knob to the left to open the door.
      向左转动手柄把门打开。
    2. The rheostat is operated by rotating the control knob, separating it from the push-pull action of the main lighting switch.
      可变电阻器由旋转的控制手柄操纵,与灯光总开关的推一拉的操纵是分开的。