抽杆报告夹 Slide Grip Report Cover
抽油杆 [油气] sucker rod ; sucker pole ; spaghetti
抽油杆钳 kelly driver ; sucker rod wrench ; rod tong ; sucker rod tong
空心抽油杆 [油气] hollow rod ; hollow sucker rod ; Hollow sucker rods
抽杆夹 rod clamp
抽油杆接箍 [油气] sucker-rod coupling ; sucker rod joint ; rod collar
抽油杆夹持器 rod holder ; rod clamp
抽油杆接头 sucker rod substitute ; rod connector ; pump rod joint
复合抽油杆柱 [油气] compound rod string ; tapered rod string
抽油杆爪 rod grab ; rod grasp
半圆形透明抽杆夹，配上透明片，轻便、灵活，适用于各种文稿递交。
Semicircular transparent slide clamp, match transparent sheets, light and flexible, suitable for the summit of all kinds of documents.
三角形不透明抽杆夹，配上透明片，轻便、灵活，适用于各种文稿递交。
Triangle opaque clamp, match the transparent sheets, light and flexible, suitable for the presentation of all kinds of documents.
本文着重探讨了工业厂房中首次采用的抽杆正交正放桁架式网架设计与施工中的一些问题。
In the paper, emphasis was placed on roof grids based on orthotropic quadrangle pyramids with selected members drawn away used for the first time in a workshop.
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