A flat surface on which a pointer casts a shadow in such a way as to show time by the sun.

日规；日晷。

The face of a watch, clock, or the like.

表面；钟面。

Any plate on which a pointer marks revolutions, direction, pressure, or the like, as a miner's compass.

(任何用指针来表示转动、方向、压力等的)表度盘指针盘(如矿工用的罗盘仪)。

In some telephones, a movable disk by means of which connections may be made without giving the number to a central operator.

(自动电话机的)拨号盘。

Rotatable disk for regulating electrical devices or tuning radio and television.

(收音机、电视的)旋转式选台器。

To measure or indicate by a dial.

用日晷来测量；用标度盘来测量或表示。

To survey with a miner's compass.

以矿工罗盘仪测量。

In telephoning, to call ( a number or the like) by operating the movable dial.

拨(电话号码)。

To regulate or tune in by means of a dial.

(转选台器来)对准波长或频率。

To use a dial.

使用标度盘或号码盘等。