...se)电极,电极借由厚约数十μm的钼箔(molybdenum)与外部的导棒连接,钼箔的线膨胀系数比锰大一位数,因此点灯时刀锋(knife edge)断面状的钼箔产生塑性变形,使得发光管内的超高压能保持一定的气密性,除此之外发光管内除了水银与氩气(argon),还添加微量的卤素...
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knife-edge follower 尖底从动件 ; 从动件
knife-edge bearing [机] 刃形支承 ; 刃支承 ; [机] 刀口承 ; 刀口支承
offset knife-edge follower 偏置尖底从动件
Steel Knife-Edge 钢质刀口
Foucault knife-edge test 傅科刀口检验 ; 傅科刀口检验法
knife-edge 刃形支承 ; [机] 刀口 ; 刀口刀形边缘 ; 刀边
knife-edge relay 刀形继电器 ; 刃式继电器
knife-edge pointer 刀缘指针 ; 刀子曲率半径
knife edge curvature radius 刀子曲率半径
Half a mile away there's another thumping great bronze, the two-section 1962 Knife Edge, opposite the House of Lords - a site chosen by Moore for its high visibility.
半英里之外还有另外一件庞大的青铜雕塑,1962年的两片《刀锋》,位于英国上议院对面——因为位置醒目摩尔选择了这里。
The economy is balanced on a knife-edge.
经济形势尚不明朗。
Tonight's knife-edge vote could be uncomfortably close.
今晚的投票难以预料,结果可能会很接近,真令人紧张。
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