此外，也充分考虑了轴的机械强度及安全性，耐用性大大提高。
Besides, full consideration is taken into the shaft's mechanical strength and safety, thus its durability is improved substantially.
此外，也充分考虑了轴的机械强度及安全性，耐用性大大提高。
Besides, full consideration is taken into the shaft's mechanical strength and safety, thus its durability is improved substantially.
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