ABBREVIATION for Ministry of State Security; the Soviet secret police from 1946 to 1954 国家安全部; 从1946年至1954年的苏联秘密警察
A daily dose of 50 to 100 mg of vitamin B-6 may help some women with troublesome PMS symptoms.
每日服用50——100毫克剂量的维生素b - 6能帮助缓解令人苦恼的PMS症状。
The heat cured sand of Al-Mg-B compound phosphate inorganic binder was modified by ultrasonic oscillation to binder and adding organic polymer YPPJ while mixing of sand.
采用对所研制的粘结剂进行超声波振荡及混砂时加入有机高聚物yppj对铝镁硼复合磷酸盐铸造粘结剂热硬砂进行改性。
The photometric probe is sensitive to the color change of acid chrome K and naphthol green B mixed indicator when Ca 2+ and Mg 2+ are titrated with EDTA.
应用于EDTA滴定钙镁时，该探头能灵敏地响应酸性铬蓝K萘酚绿B混合指示剂的颜色变化，从而实现了自动光度滴定。
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