产生过分向前弯的情况 Lordosis
今天，她注意到，敲击燧石时，桑德·加特突然向前弯转他的右手腕。
Today, she notices that Sandgathe snaps his right wrist forward when he strikes the flint.
是的。即使向前弯，我也是摸不到膝盖的，更别说我的脚趾了。
Neil: no. Even if I bend forwards I can hardly touch my knees, and certainly not my toes.
得出了叶片周向前弯后， 叶顶部分的附面层减薄， 二次流损失减小的结论， 与实验结果吻合；
The boundary layer thickness of the forward skewed rotor decreases in the top of blade due to reduction of the secondary flow loss. This fact conforms with experimental investigation.
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