氟化的

Machinability of P/M sintered steels with manganese sulfide and calcium fluoride additives is investigated and analyzed by experiments of sintering and cutting on milling machine.

通过烧结和在铣床上切削加工的实验，研究了添加硫化锰和氟化钙的烧结钢的加工性。

Tieguanyin fluoride in about 40% to 80% dissolved in water, with the teeth vulnerable combination of calcium, in the teeth formed on the surface layer of calcium fluoride, played the role of anti-acid anti-caries.

铁观音中的氟化物约有40%～80%溶解于开水，极易与牙齿中的钙质相结合，在牙齿表面形成一层氟化钙，起到防酸抗龋的作用。

Tieguanyin fluoride in about 40% to 80% dissolved in water, with the teeth vulnerable to a combination of calcium, in the teeth formed on the surface of a layer of calcium fluoride, anti-acid plays the role of anti-caries.

铁观音中的氟化物约有40%～80%溶解于开水，极易与牙齿中的钙质相结合，在牙齿表面形成一层氟化钙，起到防酸抗龋的作用。

Fluoride drops is effective in preventing dental caries in children from 3 to 6 year old.

结论氟化钠滴剂预防儿童乳牙龋病的效果明显，它对儿童乳牙龋病的预防也是一种简便的方法，值得在我市幼儿园中推广使用。

New fluoride glasses based on gallium and indium fluorides were explored.

合成了一族新的氟化镓铟玻璃，研究了InF3-PbF2-ZnF2-CdF2BaF2）体系和GaF3-CdF2-PbF2(ZnF2体系的玻璃形成区域。

The influence of oscillator plate voltage, gas pressure, extraction voltage, focusing voltage and magnetic voltage on the quality of ion beam is determined and analyzed.

发现在0.6MPa以上时，N_2和CO_2的击穿电压增加趋势逐渐变缓，而混合气体的击穿电压仍呈直线增加；加入六氟化硫可明显提高绝缘性能；湿度对击穿电压影响不大。

With the greater availability of lithium fluoride prisms, the use of this spectral range will probably be considerably extended

由于更多地使用氟化锂棱镜，这个光谱区域的应用可能会有更大的发展。

FRC was measured during spontaneous breathing and its values were obtained in triplicate with adequate time interval between each measurement to ensure re-equilibration to initial alveolar gas composition.

本文采用超声流量仪和六氟化硫(SF6)洗入/洗出技术，旨在测定无肺部病变的婴幼儿FRC值并观察肺炎婴幼儿FRC的变化特点。1 资料和方法1.1 一般资料 2 0

The results demonstrate that the DO obstructs the silica etching but facilitates the silicon etching in ammonium fluoride solution.

结果表明溶解氧阻碍二氧化硅在氟化铵溶液中的腐蚀、而加快硅的腐蚀。

While the sample was dissolved in nitric acid and hydrofluoric acid, the silicon in sample was removed through evaporating in the form of silicon fluoride. As a result, the matrix interference was eliminated, and meanwhile the high blank value as well as the influence on the life span of graphite tubes due to perchloric acid was avoided.

使用硝酸和氢氟酸消解样品，使硅生成氟化硅蒸发掉，消除了基体的干扰，也避免了使用高氯酸作为消解试剂所引起空白值高及对石墨管寿命的影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。