Laboratory, hygienic or pharmaceutical glassware(of fused quartz or other fused silica, whether or not graduated or calibrated) 实验室,卫生及配药用玻璃器(熔凝石英或熔凝硅石制,不论有无刻度或标量),
Of other glass having a linear coefficient of expansion not exceeding 5×1﹣6 per Kelvin within a temperature range of ℃ to 3℃ 其他玻璃制实验室等用玻璃器(0-300℃时线膨胀系数≤5×10-6/开尔文的玻璃制),