Artificial gem crystal manufacturing, processing and marketing. 人造宝石晶体的制造、加工、销售。
Study on Structure and Luminous Mechanism of Artificial Luminous Gem& "Qinglong Luminous Gem" for Example 人造夜光宝石的结构研究及其发光机理&以庆隆夜光合成发光宝石为例
Objective To understand the hazardous effects of occupational risk factors on the health of the workers in an artificial gem plant. 目的了解人造宝石加工行业职业危害因素对作业工人健康影响。
Results The average dust concentration in natural and artificial gem processing workshops were 1.9mg/ m~ 3 and 3.8mg/ m~ 3, and the average free silicon contents of the gem dusts were 70.9% and 44.9%. 结果天然宝石厂与人造宝石厂工作场所粉尘平均浓度分别为1.9mg/m3和3.8mg/m3,粉尘中游离SiO2平均含量分别为70.9%和44.9%;
Conclusion It is obvious that the high-frequency hearing loss is caused by high intensity noise in artificial gem plant. 结论提示人造宝石加工行业高强度噪声引起作业人员高频听力损失。
High-frequency Hearing Loss of Noise Exposed Workers in Artificial Gem Plant 某人造宝石厂噪声作业工人高频听力损失状况分析
Testing on twice birth per year and its artificial raise of gem faced civet 果子狸年产两胎试验与人工哺育的研究
Conclusion In comparison with the natural gem silicosis workers, the prognosis of the artificial gem silicosis workers is better. 结论与天然宝石加工厂比较,人造宝石加工厂矽肺预后相对较好。