needle-shaped crystal structure 针状晶体结构
needle-out structure 抽针结构
needle valve structure 针阀体结构
The part of hanging wire use flexible steel needle structure to ensure the very thin wire is connected when it is running at high speed.
挂线部分采用柔性钩针结构，保证超细线在高速绞线时不断。
The structure and principle of needle valve cushion and relief valve cushion were introduced.
本文介绍了针阀式缓冲气缸和溢流式缓冲气缸的结构及工作原理。
The structure and principle of needle valve cushion and relief valve cushion were introduced. Cushion performance and capacity of absorbing impact were compared by simulation.
本文介绍了针阀式缓冲气缸和溢流式缓冲气缸的结构及工作原理。通过仿真计算比较了它们的缓冲特性和吸收冲击的能力。
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