1)pin support,针状支承2)needle supporting pin rod,针支承连接杆3)pin type support insulator,针形支承绝缘子4)state of rigid support,刚性支承状态5)state of elastic support,弹性支承状态6)central tubular,中心管状支承
用法例句
The needle supporting pin rod of PH-LR 1250 extrusion machine is rust after ten years,cooling systems is exfiltrated,cooling effect of hole forming pin is bad,it is easy to become deformed and break.
