查询词典 fluoride

Benzaldehyde and acetone used as materials,the benzylidene acetone is synthesized in the presence of potassium fluoride on alumina.

以苄叉丙酮为主光亮剂、OP-10为载体光亮剂，并加入适量的辅助光亮剂，复配出Zn-Mn合金电镀添加剂ZM。

Universal indicator paper,special indicator paper,ammonium fluoride,ammonium hydrogen difluoride,nbenzyldimethylamine,disinfectant paper,nacetylphenylhydrazine,mcresol purple,bromocresol green,fluorescein,eosin Y,ninhydrin,phenedons,potassium phthalate,pamimobenzene sulphonic acid anhydrous.

广泛试纸，精密试纸，氟化铵，氟化氢铵，N苄基二甲胺，消毒试纸，N乙酰苯肼，间甲酚紫，溴甲酚绿，荧光素，曙红Y，水合茚三酮，菲尼酮S，苯甲酸氢钾，无水对氨基苯磺酸。

Nowadays, the medicines using for the prevention and treatment of osteoporosis incluae:(1) medicines using for resisting bone absorption, such asestrogen, calcitoin, biphosphonates etc;(2) medicines using for promoting osteogenesis: fluoride;(3) calciferous medicine and vitamin D;(4) traditional chinese medicine and chinese drugs.

目前，用于预防和治疗骨质疏松症的药物主要有(1)抗骨吸收药物：包括雌激素、降钙素、二磷酸盐等；(2)促进骨形成药物：主要指氟化物；(3)钙制剂和维生素D；(4)中医中药。

This paper studied the post-treatment process of polyvinylidene fluoride emulsion consisting of coagulation, washing-up, centrifugalization and drying procedure.

结果表明，用凝聚剂破乳、离心分离的PVDF乳液后处理工艺是可行的，凝聚效果明显，凝集粒径达到了28—32μm；离心分离完全，洗涤母液的电导率小于5μS/cm，制得的PVDF制品色泽纯白。

In part 2, a colorimetric fluoride ion sensing in aqueous solution was investigated based on competitive-binding mechanism.

其次，研究了竞争络合的机理在水相氟离子显色传感研究中的应用。

Non-fluoride ionic number of Nd-F in dilute LiF-NdF3 melts and Nd-O-F species in dilute LiF-NdF3-Li2CO3 melts was researched by cryoscopic method,respectively.

采用冰点降低法分别研究了以LiF为溶剂的稀LiF-NdF3熔盐中Nd-F离子团及LiF-NdF3-Li2CO3熔盐中Nd-O-F离子团的非氟离子的个数。

The cesium fluoride-mediated N,N-diarylation of 4-(biphenyl-4-oxy)aniline with 4-fluoronitrobenzene and subsequent reduction of the dinitro intermediate led to a new triphenylamine-based diamine monomer, 4,4'-diamino-4-(biphenylyl-4-oxy)triphenylamine.

以氟化铯为媒介将此苯胺与 4-fluoronitrobenzene 进行芳香族亲核取代反应，随后再进行dinitro中间体的还原反应，制得ㄧ种新型具有三苯胺结构的芳香族二胺单体4，4'-diamino-4-(biphenylyl-4-oxy)triphenylamine。

Because of the low pH and dissociality of hydrofluoric acid, people often ignore the severity of symptoms after contact it. However, the hydrogen ion and free fluoride ion exist persistently.

摘要氢氟酸是目前工业界常见的强酸性溶剂，但是因为在强酸类中是属於较低酸性及低解离度，故对身体立即性之损伤较少，延迟产生之损伤合并症较多，因此异常接触后易使人轻忽其伤害之严重性。

METHODS: The Tecnis Z9000 silicone IOL shares the same basic characteristics with the 911A IOL including a 12.0mmoverall diameter, 3-piece equiconvex 6.0mm optic and angulated cap C polyvinylidene fluoride haptics.

Tecnis Z9000硅凝胶IOL和911A IOL具有共同的基本特征包括12mm总长度、三片直边双凸6mm的光学直径和成角的聚丙乙烯C襻。

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。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。