“正面的”造句

马达自转角度对东部是正面的, 对西部阴性.
Motor rotation angles to the east are positive, to the west negative.

大部分素描都是正面的, 但是也有侧面观的.
Most sketches are frontal, but there have been a few side views.

评论都是正面的.
The reviews were all positive.