"Imagine all the joints that are in your hand. There's 20 motions around all those joints," says Pittsburgh neurobiologist Andrew Schwartz.
匹兹堡的神经生物学家安德鲁·施瓦茨说：“想象一下，你的手上所有的关节，这些关节可以完成20种动作。”
Thus, while using this mouse hand of man will be in a really comfortable position that will help to avoid unnecessary effort and tension in the joints during manipulation.
因此，使用这种鼠标的人，手得到一个非常舒适的位置，可避免操作中手关节上不必要的紧张。
When it comes to water features, which go hand in hand with rockwork, faux rock has no mortared joints to leak and seep like real rock features do.
当涉及到水的特性，携手与假山手，人造岩石没有迫击炮接头泄漏和渗漏像真正的岩石特征做。
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