问题:金属半框镜架在镜圈两头部有2个穿外鱼丝的小孔,孔的直径应设计多大?()A、小于鱼丝外径B、等于鱼丝外径C、比鱼丝外径大0.1-0.2mmD、比鱼丝外径大0.2mm以上...
Tuesday, January 10, 2023
Monday, September 12, 2022
问题:普通光学眼镜架的前倾角一般为7°,所以桩头配件打弯倾角也必须是7°...
Sunday, June 18, 2023
问题:关于工业卫生的防护措施是()。A、预防措施B、防治结合C、综合预防、治理措施D、以上均不是...
Thursday, February 15, 2024
Tuesday, April 30, 2024
问题:眼镜产品的检查方法包括:测量、目测、手感、测试等。...
Monday, September 12, 2022
Friday, October 20, 2023
问题:光学眼镜架的托叶位置一般是在烟斗盒孔中心低于镜片水平中心2mm。...
Monday, September 12, 2022
问题:金属眼镜架抛光蜡的研磨粒子粒度从大到小排列是()A、黄蜡、绿蜡、白蜡;B、黄蜡、白蜡、绿蜡;C、白蜡、绿蜡、黄蜡;D、绿蜡、白蜡、黄蜡。...
Tuesday, February 6, 2024
问题:下列四个成品颜色对半成品抛光要求最低的是()A、亮金色;B、亮银色;C、亮枪色;D、咖啡色...
Wednesday, December 13, 2023
问题:最适合用于不锈钢焊接的焊线的含银量是()A、含银量15%;B、含银量30%;C、含银量45%;D、含银量60%。...
Sunday, December 31, 2023
问题:普通女款光学眼镜架镜片尺码一般为()A、48-;B、49-52;C、53-55;D、56+。...
Sunday, June 18, 2023
Monday, December 25, 2023
Tuesday, April 30, 2024
Sunday, June 18, 2023
Tuesday, April 30, 2024
Monday, September 12, 2022
Monday, September 12, 2022