Muscle cell electrolyte composition is essential for nerve-muscle contraction force.
肌肉细胞电解质的组成是不可或缺的神经，肌肉收缩力。
It is clear that the composition and structure of the cell wall are strictly controlled.
现在已经明白，细胞壁的成分和结构受到严密的控制。
It is clear that the composition and structure of the cell wall are strictly controlled.
现在已经明白，细胞壁的成分和结构受到严密的控制。
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