The speed of technological change has also tended to vary throughout the supply chain.
技术变迁的速度在整个供应链中也有变异的倾向。
The technological property of the chain wheel of the torsion-limiting device is analyzed.
本文分析了链轮加工的常用方法 ，设计了专用链轮铣削刀具。
The technological property of the chain wheel of the torsion-limiting device is analyzed.
本文分析了链轮加工的常用方法 ，设计了专用链轮铣削刀具。
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