查询词典 fluorine

From the analysis of the content of slag, adding CaF2 to the flux would increase the content of calcium and fluorine in the slag. Adding Na3AlF6 to the flux would increase the content of sodium, alumium and fluorine in the slag.

由熔渣成分分析可知，焊药中添加CaF2会增加渣中钙与氟含量，添加Na3AlF6会增加渣中钠、铝与氟含量，添加NaF会增加渣中钠与氟含量。

A clean production technology for fluorine and silica white is introduced, with fluorine-containing gas raw material directly absorbed by ammonium fluoride, or ammonia to obtain ammonium fluorosilicate ,and to get ammonium fluoride and silica white by ammonization, further to manufacture other fluoride product with high value.

介绍一种利用磷肥生产中的含氟废气生产氟化合物与白炭黑的清洁生产方法：用氟化铵或氨直接吸收含氟气体生成氟硅酸铵，然后氨化得氟化铵与白炭黑(SiO2)，氟化铵可进一步加工为其它高价值氟化物产品。

The cuspidine is all long known as the main factor leading to the low strength o the sinter bearing fluorine, But with the fluorine decreasing by a wide margin, the strength of the sinter bearingfluorine get lower. So, the first work is to fine out the reason to cause the strength low.

含氟烧结矿中的枪晶石一直被认为是制约包钢烧结矿强度的主要因素，但随着含氟量的大幅度降低，烧结矿的强度却进一步恶化，因此，弄清影响低氟烧结矿强度的原因是提高烧结矿强度的前提和基础。

Besides the technologies of fluorine fixation and decreation, changes in the living habits of the residents, for example, the chili washed by water, the corn husked before it was processed into corn powder, will remove a certain content of fluorine absorbed on the corn husk and will play a important role in endemic fluorosis prevention.

除了采用固氟技术以外，病区居民改变生活习惯，在食用辣椒前用清水淘洗，把玉米粒加工成玉米面前进行脱皮处理，可以除去食物表面相当一部分氟，对预防地方病氟中毒有重要作用。

Factory engaged in medicine, veterinary medicine, agricultural chemicals and raw materials development and production of intermediates, the series of export products: 2,2 - bipyridine, 2,6 - dihydroxy toluene, propiconazole intermediates, phenol line P , Fluometuron, fluorine pyronaridine oxadiazon, oxadiazon pyronaridine fluorine intermediates, Robenidine hydrochloride and so on.

本厂从事医药、兽药、农用化学品原料药及中间体的研制与生产，系列出口产品：2，2-联吡啶，2，6-二羟基甲苯，丙环唑中间体，酚线磷，伏草隆，氟咯草酮，氟咯草酮中间体，盐酸氯苯胍等等。

The volatilization of mould powder concludes the evaporation of alkali oxides besides the evaporable fluoride created between the fluorine and acid and alkali oxides. The results of CaO-SiO〓-Na〓O ternary fluorine free slag are: there is a strong relationship between volatilization of Na〓O and basicity R.

对CaO-SiO〓-Na〓O三元无氟渣系的测定结果表明，渣中Na〓O的挥发与碱度R有很大关系，当R＜1时，单位时间内其挥发百分率是恒定的，且受温度的影响不大；当R＞1时，单位时间内的挥发百分率将随其含量的增加而增加。

Based on the summarization of current situation of fluorine-free mould fluxes at home and abroad,the main problem during decreasing fluorine for high carbon steel and peritectic steel mould fluxes was analyzed,which includes the stability between viscosity and temperature at high temperature as well as effective control of crystallization properties .

综述了国内外无氟连铸结晶器保护渣发展状况，分析了目前高碳钢和包晶钢用保护渣降氟过程中面临的主要问题：高温时粘度-温度特性的稳定性以及保护渣结晶性能的有效控制。

This research was based on mechanism that organic material has reconditions action on soil pollution. We chose yellow soil and calcareous soil in Guizhou province, peat coal and gentle breeze coal were added into simulated high fluorine polluted soil to study the effect of organic material on soil soluble fluorine content using the qualified design.

试验选用典型贵州黄壤和石灰土，运用有机质进行土壤污染修复的机理，通过向模拟高氟污染土壤中添加有机物料泥炭和风化煤，采用两因素最优设计，研究两种有机物料对土壤中水溶性氟含量的影响。

Penguin dropping soil enriched fluorine, whilst deadly fluorine concentration was also detected in penguin bone. However, radiographs of Adelie penguin bones show no symptoms of fluorosis .

企鹅粪土中富集元素 F ，在企鹅骨骼中也发现 F 元素的富集，但经过 X 光鉴别并未发现企鹅患有氟骨病。

Methods The content of urine fluorine was determined among 26 students and the content of fluorine for rice, cabbage, sweet potatoes, pomegranate, chestnut and coal were also determined.

对右江民族医学院26位同学（≥21岁）的尿液氟含量及大米、白菜、番薯、石榴、板栗、煤炭的氟含量进行测定。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48