Analyzed the uncertainties on the fatigue properties of welded hollow spherical joints plate grid structure.

分析了各种不确定因素对焊接空心球节点网架疲劳性能的影响程度。

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Use special calcium lead tin alloy plate grid, more resistant to corrosion, charging accept ability is better.

使用特殊的钙铅锡合金板栅，更耐腐蚀，充电接受能力更好。

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The deflection of double-pitch hipped-plate grid structure increased significantly after earthquake, and the part of anchor bolts of rubber bearing were cut off.

某双坡折板式网架结构在地震作用下出现结构挠度大幅度增加、部分橡胶支座锚栓被剪断的破坏特征。

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Small changes to the voltage of the grid control large changes in the electron current flowing to the collector plate.

ECONOMIST: The middle age of the transistor

This was also a triode: a glass tube containing a heated metal filament which emits electrons, a plate that collects them once they have accelerated through the tube, and a metal grid in between.

ECONOMIST: The middle age of the transistor