对于火炮这样一些设备，则采用机械式刻度盘及光学分划装置加以测量。

For some equipment like artillery, it USES mechanical dials and optical division equipment to measure.

youdao

对于火炮这样一些设备，则采用机械式刻度盘及光学分划装置加以测量。

For some equipment like artillery, it USES mechanical dials and optical division equipment to measure.

youdao