D-bar telescopic tow 伸缩杆式圆盘拖牵索道
telescopic pan bar 望远遥把
telescopic kelly bar 伸缩钻杆
telescopic spacer bar 伸缩式撑杆
telescopic style spring bar 伸缩式表耳簧
The invention discloses a dropping tester table, which comprises a support, a cylinder with an up-down telescopic core bar, an air claw and a control circuit.
一种跌落试验机台，包括一支架、一具可上下伸缩的芯杆的气缸、一气爪及一控制电路 。
Conclusion the bar attachment and the telescopic overdentures are ideal types of prostheses.
结论杆式附着体及双套冠式覆盖义齿是一种理想的修复形式。
The invention uses the matching of telescopic drawer-bracket and the pulling bar, achieves the purpose of swift installation of steel suspension box pulling bar;
本发明 采用可伸缩抽屉式牛腿及拉杆相配合使用，实现了钢吊箱拉杆快 速安装的目的；
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