是由滑刀、具有开口槽及限位销钉的滑刀架、和含有弓形弹簧及弹簧架的弹簧仓组成。
The utility model consists of a slide knife, a slide knife bracket provided with an opening groove and a limit pin, and a spring storehouse provided with a semielliptic spring and a spring bracket.
只有一个例外，那就是一系列使用所谓记忆泡沫材料的床，而一般的床用的都是弹簧床垫或床垫架。
There was one exception: a line of beds that used so-called memory foam instead of a standard mattress and box spring.
从原材料纯度、表面质量、弹簧腐蚀及端圈结构等几个方面阐述了影响转向架钢制螺旋弹簧疲劳寿命的因素。
The factors affecting fatigue life of coiled steel springs for bogies are expounded from such aspects as purity of raw material, surface quality, spring corrosion and structure of end coil.
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