Keeping head down and in line reduces drag.
头降低在身体直线上会减少阻力。
The clear orchid continues to lower the head, heart course, you drag down, menace who?
明兰继续低着头，心道，您拉倒吧，唬谁呢？
The head wheel is provided with teeth fitting with the drag chains.
头轮上设有与牵引链相吻合的齿。
The head wheel is provided with teeth fitting with the drag chains.
头轮上设有与牵引链相吻合的齿。
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