catcher捕集器、吸尘器、(活套轧机的)机后轧钢工、(可逆轧机的)回送工、(镀锡机的)收板装置 catcher marks夹痕 catenary(同catenasrian)悬索、悬链、悬垂线垂直线、(带钢)垂度、驰度、悬挂电缆的吊线 ..
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实验材料为郑州大学第一附属医院妇产科住院的健康顺产或剖宫产患者自愿捐献的新生儿无血肿、夹痕的脐带。
Fresh umbilical cords were obtained following delivery of healthy babies to healthy normotensive mothers, either by vaginal delivery or by elective Caesarean section.
提出了在恰当位置设置溢流槽和增大内浇口厚度等改进措施,从而有效降低了铸件冷隔、流痕、夹渣等缺陷的产生,提高了压铸件表面质量。
The position of overflow and thicker inner gate was optimized to reduce the probabilities of cold shut, flow marks and slag. Furthermore, the surface quality of the die casting improves.
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