When you are going down hill, you do not need to pedal.
你在下坡的时候，不用踩踏板。
The edge extension seriously affects the quality of welding. It is now to adopt down hill forming to reduce the edge extension.
边缘延伸严重影响焊接质量，目前可采用下山成型来减小边缘延伸。
Transitions: the weight shifts from down hill ski to the new downhill ski using lead change with out up weighting and down weighting.
转换：利用引导变换将重心从山下板转移到新的山下板上，没有重心的上下移动。
Transitions: the weight shifts from down hill ski to the new downhill ski using lead change with out up weighting and down weighting.
转换：利用引导变换将重心从山下板转移到新的山下板上，没有重心的上下移动。
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