维保人员在轿顶时，绝对禁止轿厢的运行，绝对禁止维保人员踏足轿顶非承重部位；
When maintenance personnel are on car roof, car running is absolutely prohibited, and so is the personnel's stepping on the non-weight bearing area of the car roof;
CS 降解吸收快，生物相容性好，在急性骨折伴缺损和无需承重部位的骨移植中是最佳骨修复填充材料。
CS has rapid dissolution and good biocompatibility. It is a good replaceable packing materials of bone defects in some upper limb's or acute bone fracture.
台车式电阻炉的炉膛的承重和易受冲撞部位用高强度耐火砖砌筑，并且在砌筑过程中使用掺水玻璃的的泥浆，所以炉膛强度大幅提高。
Bogie hearth resistance furnace bearing and susceptible to collision parts with high strength refractory brick masonry, and the use of water glass during building the mud, so the strength increase.
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