The key in finite element analysis on complete pile frame of rotary pile drill-finite element model of pin connection, is researched in depth. A feasible and accurate finite element model is offered.
对旋挖钻机桩架整体有限元分析中的关键件——销轴连接的有限元模型进行了深入研究，并提出了实用而精确的有限元模型。
Pin a nail on the outside of the door frame and leave a part of protrusion. Making the exposing part of the nail make up the gap between the door and door frame.
在锁舌外侧的门框上钉一枚铁钉，预留部分凸出，并使铁钉露出木头部分的长度正好弥补木门与门框之间的空隙。
When the socket is used, and a pin contacts a power, the copper sheet and the plastic insulating part of the pin enter the guard frame, which can effectively prevent the accident of electric shock.
使用该插座，当插销接触到电源时。插销的铜片和塑料绝缘部分已进入防护框内。能有效地防止触电事故。
应用推荐