刻度环也有的单位叫刻度盘。是使用冲压或者蚀刻或激光雕刻在金属表面的可以显示刻度以及数字的金属操作件,通常形状为圆形,材质以钢件居多,部分使用铝或者铜等。
松开赤经兼小时刻度环的定位螺丝后把赤经兼小时刻度环“0小时”位置对准赤经指示箭头。
Set "0 hour" on the R. A. and hour graduation ring to the R. A. indicator after loosening the graduation-ring setscrew.
我不知道它是从哪里来的,但是它的样式与时下可以在玩具店里买到的那种是不同的。新样式的占卜板大多是塑料盘面,上面的刻度环一般是透明的。
I don't know where it came from but it wasn't like the new kind you can buy at the toy store with the plastic dial with the see-through circle on it.
铝合金结构,由盖、夹钳、环焰灯、连接装置、带刻度圆筒和温度计组成。
Consists of an aluminum alloy still with lid and clamp assembly, ring burner, connection apparatus, graduate cylinder and thermometers.
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