如果你需要的话，你的牙医可以给你开更高浓度含氟凝胶，牙膏或漱口剂。
Your dentist can prescribe a stronger concentration of fluoride in a gel, toothpaste or rinse if you need it.
一些业内人士显然不想购买氟氯化碳替代品，因为后者的价格是氟氯化碳的5倍。
Some in the industry apparently do not want to pay for CFC substitutes, which can run five times the cost of CFC's.
氢氯氟烃和氢氟烃被认为是全球变暖的原因。
Hydrochlorofluorocarbons and hydrofluorocarbons are regarded as contributors to global warming.
三苯基膦被全氟烷基取代基所取代。
Triphenylphosphine has been modified by attachment of perfluoroalkyl substituents.
单侧微注射氟西泮可降低大鼠平均膈肌活动。
Unilateral microinjection of flurazepam in nucleus tractus so-litarius (NTS) depressed the average phrenic activity.
氟烷基因的遗传与孟德尔的分离定律是一致的。
The inheritance of the halothane gene was shown to be in agreement with Mendel's law of segregation.
运用专业冷光美白技术治疗四环素牙、氟斑牙、染色牙。
Use professional cold light to whiten and treat acheomycin teeth, dental fluorosis, teeth staining.
本文描述了用毛细管气相色谱对0.8％四氟菊酯驱蚊药液的定量分析方法。
This paper describes a capillary column gas chromatography method for quantitative analysis of an 0.8 % solution of transfluthrin repellent.
质子交换膜燃料电池采用全氟磺酸固体聚合物膜为电解质。
Proton exchange membrane fuel cells use a perfluorosulfonic solid polymer film as electrolyte.
目的是探讨外排泵在嗜麦芽窄食单胞菌中对氟喹诺酮类药物的耐药性中的作用。
The objective is to explore the role of efflux pump in drug resistance to fluoroquinolones in Stenotrophomonas maltophilia.
生产了各种芳基三氟甲磺酸酯。
这一新发明的杀虫剂中包含氯虫苯甲酰胺和氟铃脲。
The new invention relates to a rynaxypyr and hexaflumuron insecticidal composition.
氟维司群预处理可能部分抑制这种由 EGF 介导的运动。
This EGF-mediated motility could be partly inhibited by fulvestrant pretreatment.
详细研究了氟代苯基硼酸和多芳基硼酸的合成及其工艺改进。
The synthesis of fluoro-substituted phenylboronic acid, and multiarylboronic acid and their process improvement were studied in detail.
测定氟虫胺饵剂用于公园和公共绿地等对红火蚁的灭治效果。
Test the efficacy of sulfluramid bait against Solenopsis invicta in gardens and common greenbelt.
将消费品与杜邦材料一起使用不会导致全氟辛酸（PFOA）的定量暴露。
The use of consumer articles with DuPont materials would not result in quantifiable exposure to perfluorooctanoic acid (PFOA).
2,3-二氯-5-三氟甲基吡啶是杀虫剂氯氟脲类合成农药的关键中间体。
2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.
法国制药公司赛诺菲-安万特也在就一种口服药物特立氟胺开展大型临床试验。
France's Sanofi-Aventis is carrying out large clinical trials of an oral drug called teriflunomide.
牙膏和漱口水是氟的良好来源。
氟是一种自然形成的矿物质。
它是铝、硅和氟的化合物。
建议每当你吃完甜食后都要用含氟的牙膏把牙刷干净。
Whenever you eat sweets -- in anymeal or snack -- brush your teeth well with a fluoride toothpaste afterward.
现在，它将不会对称，因为有两个氟原子和两个氯原子。
Now, it's not going to be symmetric is it, because there's two fluorines and two chlorines.
仅在中国，估计就有1000多万人患有氟骨症。
In China alone, more than 10 million people are estimated to suffer from skeletal fluorosis.
像其他许多分子一样，氟比洛芬酯具有左旋和右旋两种形式。
Like many other molecules, flurbiprofen has a left-handed and a right-handed form.
其特殊的分子结构在于一侧是氟原子而另一侧是氢原子的不平衡排列。
Its particular molecular structure involves a lopsided arrangement of fluorine atoms on one side and hydrogen atoms on the other.
但是每个氟原子现在都有八个电子，或者说周围有一个填满的八隅体。
But that each individual fluorine atom has eight electrons, or full octet around it.
但是每个氟原子现在都有八个电子，或者说周围有一个填满的八隅体。
But that each individual fluorine atom has eight electrons, or full octet around it.
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