The laser transmitter is arranged in a mode that the laser line strips emitted by the laser transmitter are horizontal or vertical when the support rod lies in a vertical state.
激光发射器被设置成当支持杆处于竖直状态时其所发射的激光线条水平或垂直。
The laser transmitter is arranged in a mode that the laser line strips emitted by the laser transmitter are horizontal or vertical when the support rod lies in a vertical state.
激光发射器被设置成当支持杆处于竖直状态时其所发射的激光线条水平或垂直。
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