查询词典 fluoric

The invention relates to a fluoric polymer with the principle chain comprising both an amide bond and a sulfonic acid amide bond, the polymer is prepared by the reaction of poly monomers containing dual functional groups and various diamine interfaces or solution.

本发明涉及一种主链同时含有酰胺键和磺酰胺键的含氟聚合物，这类聚合物是通过含有双官能团的聚合单体与各种二胺界面反应或者溶液反应而制备得到。

Said mineralizing agent is the fluoric alkali-earth metal salts or alkali metal salts (potassium fluoride or calcium fluoride).

其特征是在磷酸钙盐与碳酸钙盐以2∶1比混合物中，加入0.5～3wt％的含氟离子碱土金属或碱金属盐矿化剂，例如氟化钾、氟化钙等。

The fabrication of SiNW was used by "electroless etching" which was when (100) c-Si was immersed in the solution containing silver nitrate and hydrofluoric acid. Si was etched by fluoric ion and released electrons to combine with silver ion to form Ag particles.

制作矽奈米线阵列的方式为无电镀蚀刻法，系将一p-type(100)之矽基板置入氢氟酸与销酸银的混合蚀刻液中，当溶液中之氟离子与矽基板接触后，矽即被解离成矽离子并放出一颗电子。

Ta,Mo,W,Ti,Nb,the refractory impurity elements,in RE metals are dissolved thoroughly with the addition of fluoric acid,and then determined by ICP-MS.

在稀土金属的冶炼过程中，常用到一些由难熔金属制成的冶炼容器，这样极易引入相应的难熔金属杂质，如Ta、Mo、W、Ti、Nb等。

The volatility and melting uniformity of premelted fluxes and mixed powder was studied mainly on fluoric slag for steelmaking of mould powder base and CaO-CaF〓 based refining slag in the paper.

本文以连铸保护渣基料及CaO-CaF〓基炉外精炼渣两大炼钢含氟渣系为主，对预熔型和混合型两种形态渣的挥发性和熔化均匀性进行了研究。

The replacement of SF6 by refrigerant is under development. For example, R143a by AMC and FK by 3M Co. used as protection gas are both classified as HFC with short atmospheric lifetime and are easily to be decomposed into hydrofluoric acid, carbon monoxide and fluoric carbon monoxide at room temperature.

目前发展中的替代性保护气体以冷媒类为主，如澳洲AMC所采用的R134a及美国3M公司所开发的FK气体，两者都属於氟氢碳化合物，不过其半衰期短，即使在常温下，仍极易分解成氢氟酸、CO、COF2等，其中氢氟酸为有害物质，但因含量很少，且在高温下易与镁液反应，故对人体的为害很小。

fluoride pollution ; fluoric wastewater treatment ; lime-sedimentation ; coagulation sedimentation

石灰沉淀与混凝沉淀组合法具体工艺流程如图1。图1 试验工艺流程试验中用的主要仪器是：JJ-4

CQB-F series fluoric plastic magnetism-driven pump uses magnetic coupling drive without dynamic seal, thus to effectively avoid the phenomena of losing, emitting and leaking borne by shaft seal of common shaft drive type centrifugal pumps.

概述 CQB-F系列氟塑料磁力驱动泵，采用磁力耦合传动，不存在动密封点，因此彻底杜绝了一般轴行动式离心泵轴封处跑、冒、滴、漏的现象。

It is very important to preplan first aid and treatment for fluorine and hydro-fluoric acid exposures because of their unique properties.

因为它们的独特性质，对氟和氢氟酸暴露的急救和处理预先计划是非常重要的。

It is studied that the mechanism of extracting potassium from the potassium-rich shale sample in Caoyang using sulfuric-fluoric mixed acid.

本文对朝阳地区的富钾页岩矿样在硫-氟混酸作用下浸出提钾的反应机理进行了系统的研究。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"