Fluorine gas purity of its products, anti-corrosion chromatography, in the blank.
对其产品氟气纯度的防腐色谱分析，处于空白。
The spectrometer can accurately determine the purity of fluorine gas and its impurities.
该谱仪能准确测定氟气纯度及其杂质含量。
Metallic calcium also burns in fluorine gas, forming the fused fluoride, and occasionally minute crystals of fluorspar.
金属钙还烧伤的氟气，形成了融合氟化物，偶尔分钟和萤石晶体。
NF3 is also used as a fluorine source in high energy chemical lasers, owing to its ease of use relative to fluorine gas.
由于它相对于氟气更容易使用，NF 3在高能化学激光器中用作氟源。
Pitch fluoride powders were prepared through the reaction between mesophase pitch grain and fluorine gas in rotative nickel reactor.
采用中间相沥青微粒在旋转式反应釜中与氟气进行反应制备出氟化沥青。
Any accidental release of fluorine could also be an issue: fluorine is a toxic and corrosive gas and, at high concentrations, can retard plant growth and damage teeth and bones.
氟气的任一次意外泄漏也都可能造成问题。氟气是一种有毒的腐蚀性气体，而且，在高浓度时，能阻碍植物生长并，损伤牙齿和骨骼。
Older readers will remember vehicles fitted with the "old gas" called R12, a compound of Chlorine, Fluorine and Carbon (CFC).
年长的读者们会记得有些车辆注入的“元老级气态制冷剂”为R 12，一种氯氟碳(英文简称CFC)的混合物。
After more can cause fluorine leone do not evaporate on the indoor machine of the evaporator, and evaporation on gas pipe connecting pipe back.
多加后会造成氟立昂不在室内机的蒸发器上蒸发，而在回气管道的连接管上蒸发。
Derivative gas chromatography is used to analyze the fluorinated compound derived from the gas out of the rare earth concentrates containing fluorine.
应用衍生气相色谱法测定含氟稀土精矿焙烧逸出气体中的氟化物。
The fluorine mixed gas prepared by this device, which may prolong the working hours of excimer-laser 2 to 3 times and prolong the average useful time of lens of laser 3 to 5 times.
按规程应用该装置配制的含氟混合气，可以使准分子激光器的有效工作时间延长2 ~3倍，激光器中镜面的使用寿命平均延长3 ~5倍。
If the gas is processed in contact plants, this fluorine must be removed to prevent damage to the catalyst.
假若该气体在接触法工厂中加工，则氟必须除去，以免损害摧化剂。
This paper abstractly describes the fluorine emission and the control state of industrial waste gas recent years in China.
文章概要叙述我国近年工业废气的氟排放和治理状况。
The process can both eliminate pollution of fluorine and silicon in waste gas of phosphate fertilizer production, and achieve high economic benefit products.
本方法的实施既能较彻底地消除磷肥尾气中氟、硅的污染，又能较充分而又有效地将其转化成具有较高经济价值的氟、硅产品。
The leather treated using fluorine containing retanning agent has a soft hand, good gas permeability, and better water , oil and soil resistances and so on.
含氟复鞣剂可以赋予皮革良好的手感、优异的透气性、抗水抗油性、抗污性等性能。
The sources of fluorine-containing gas are analyzed from the extraction of WPA, flash evaporation cooling of slurry and concentration system.
阐述湿法磷酸生产的萃取分解、萃取料浆闪蒸冷却及浓缩系统含氟气体的产生过程；
Arsenic and fluorine contents were determined to obtain their distribution behavior in copper concentrate smelting and sulphuric acid production with the off-gas.
通过对铜精矿冶炼过程及冶炼烟气制酸过程砷、氟含量的测定，确定了在整个系统中砷、氟的分布。
Experimental results show that higher selectivity can be achieved when fluorine-based gas is used as processing gas and Al or Al alloys are introduced as mask layers.
实验发现，以氟基气体作为工艺气体，铝或铝合金作为掩蔽层时，可以获得极高的选择比；
Experimental results show that higher selectivity can be achieved when fluorine-based gas is used as processing gas and Al or Al alloys are introduced as mask layers.
实验发现，以氟基气体作为工艺气体，铝或铝合金作为掩蔽层时，可以获得极高的选择比；
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