vt. 向 ... 中加入氟化物
PH is 6.5 to 8, no sulfur or fluorid. PH值为6.
Electrode method has good selectivity,high sensitiveness and wide linearity to detection of fluorid in rain water. 电极法测定降水中的氟具有选择性好、灵敏度高、线性范围宽,降水中的浑浊和色度不影响测定的特点,测定范围为0。
The influence concem about fluorid effecting the health was discussed,thinking that there is a suitable density fluorid in the drinking water. 对新乡市不同水.
Artificial coral with more emulsion can use fluorid to make it muddy, using more colorant than transparent glass, but be careful not to separate grains out, preventing the surface from roughness. 仿珊瑚等乳浊程度比较高的可用氟化物乳浊,着色剂用量比透明玻璃要高,但需要防止析出晶粒而使表面粗糙。
TheyThe use a fluorid of fluoride to protect teeth is common in many parts of the world. 用氟化物保护牙齿被世界上很多国家所使用。
