棋子矩形原点(左上角)的左方向坐标。
Left coordinate of checker rectangle origin (upper-left corner).
转左方向的黄灯之后，会有转左的红灯亮起。
After the yellow light, a red light appears for left-turning vehicles only.
室内机都以水平向左方向的安装状态出厂，如右下图所示。
All units are factory-built for horizontal-left installation showed as the right-down figure.
如果沿顺时针方向走，就会发现这个曲面在左方，或者用右手定则来判断。
If you walk clockwise, you will see that the surface is to your left or use the right-hand rule.
他将方向盘转向左方。
车轮校准：双手不握方向盘，驱热管散热器的安装车穿过一片空旷平展的停车场，查看车偏往左方还是偏往右方。
Wheel ALIGNMENT: Drive your car across an empty, flat parking lot with hands off wheel. Does it drift left or right?
车轮校准：双手不握方向盘，驱热管散热器的安装车穿过一片空旷平展的停车场，查看车偏往左方还是偏往右方。
Wheel ALIGNMENT: Drive your car across an empty, flat parking lot with hands off wheel. Does it drift left or right?
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