绞座是指弧门的支承铰。通过支臂端的铰旋转启闭并承受水压力传到闸墩。固定铰座是大型水库闸门弧形启闭机上使用的关键备件，承受力大，要求铸件无缩孔、疏松、裂纹等缺陷。该件材质为ZG270-500， 铸件重5 t 左右。
下铰座 lower bracket
上铰座 upper bracket
铰式支座 [机] knuckle bearing ; tumbler bearing
铰接支座 pin rocker bearing ; rounded support ; tumbler bearing ; hinged support
铰接式支座 hinged support
球铰座 spherical-hinge base
开口铰座 open hinged bearing
铰支座 hinged shoe ; Hinge support ; hinged support
铰刀座 Reamer sockets ; reamer seat
机器框架刚性好，增强的轴承螺座和低维护机铰连杆是高精密、低维护和长使用寿命的代表。
A rigid machine frame combined with reinforced bearing bolts and low-maintenance toggle jacks stands for high precision, low-maintenance requirements and a long service life.
本文对上海一座具有悬臂铰节点的多联曲线连续箱形梁桥的可行性方案提出了两种比较实用的分析方法。
In connection with a proposed multiple curved continuous box girder bridge with cantilever hinged joints in Shanghai, two practical and efficient methods of analysis have been developed.
该设备采用快速夹头，气门双向摆动并同向差动，可以调整控制拍击力和拍击速度，可实现气门与气门座的铰削与研磨。
The muller uses clliper-collet, the gas-valve can flirt and differential, the rapping power and rapping velocity can be adjusted. It can chop and grind the gas-valve and valve seat.
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