double groove

基本解释

The utility model is composed of a post, a guide rail, a movable rod, a traction rope, a support rope, a double groove pulley, a button, etc.
该装置由柱桩、导轨、活动杆、牵引绳、支撑绳、双槽滑轮、按钮等组成。
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The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending.
文章论述了在设计中采用钢屋架下弦两节点下悬吊双槽钢作为分布梁避免钢屋架下弦拉弯工作。
So this paper is related to the study of basic forming principles of cold rolling for double groove ball bearing outer rings from theory, numerical simulation and experiment.
本文以双沟轴承外圈为研究对象，从理论、数值模拟和实验角度对双沟轴承套圈冷辗扩成型基本规律进行了深入研究。