聚四氟乙烯

And then, a series of meaningful conclusions are gained that F4 is the most closely Lambert Body but lubricous aluminum plate is resembled as mirror.

得到了聚四氟乙烯最接近朗伯体，而光滑铝板接近镜面的一系列有意义的结论。

Polytetrafluoroethylene bonded carbon-based oxygen electrode are widely used in many important electrochemical technologies, such as fuel cells, matal/air batteries, organic electrosynthetic processes and electrochemical devices for decontamination of wastewaters.

聚四氟乙烯粘结的碳基氧电极广泛地应用在燃料电池、金属/空气电池、有机电合成及电化学废。。。

Because this produces peculiar tooth jaw face to misshape, constant expression is mid development undesirable reach cave, length of direction of around of bone of the upper jaw and perpendicular direction height shorten, tooth bend is narrow, the tooth lists jam, occlusive relation is disorder, anterior teeth or complete tooth bend are enclothed instead, before mandible true sex or false sex dash forward. 2 use DO method at the back of art of Jiao Zhi cleft palate in the portion caves at the back of art of abnormal cleft palate in the portion caves abnormal treatment method is very much, if Kettle reports block is mental,raise fight a way, the face guard method that Tind Lund uses, wang Ketao [1] uses Peng body to get together 4 fluorine ethylene fills up repair misshapes this kind etc.

因此产生特有的牙颌面畸形，常表现为面中部发育不良及凹陷，上颌骨前后方向长度及垂直方向高度变短，牙弓狭窄，牙列拥挤，咬合关系紊乱，前牙或全牙弓反覆盖，下颌真性或假性前突。2利用DO术矫治腭裂术后面中份凹陷畸形腭裂术后面中份凹陷畸形治疗方法很多，如Kettle报道枕颏支抗法，Tind lund采用的面罩法，王克涛[1]采用膨体聚四氟乙烯充填修复此类畸形等。

We are the agency of Swiss SEFAR Group,which manufactures monofilament or multifilament fabrics with polyester,nylon,polypropylene,PTEF and needlefelt mainly used in chemical,pharmaceutical,dyestuff,minig,food,disc filter,plan filter etc,we also supply other certain filter media and technical service.

简介： 正中公司专业代理瑞士SEFAR筛网滤布编织公司所织造的聚酯和尼龙聚丙烯聚四氟乙烯等各种合成纤维单，复丝滤布及无纺布，应用于化工，制药，染料，矿业，食品，造纸，环各行业过滤设备上，正中公司并提供其他相关的过滤介质及技术服务。

Effect of a combination of mild-temperature hyperthermia and nicotinamide on the radiation response of experimental tumors ［J］.

2.2.1 聚四氟乙烯棒及玻棒介电常数的测量将这两种棒分别插入谐振腔，测得数据见Tab1。

PTFE and NPG exhibit a poor biocompatibility, while β-TCP and CPC have a good biocompatibility, and CPC is the most biocompatible of all the biomaterials tested.

聚四氟乙烯和NPG的生物相容性程度较差，β-磷酸三钙和固化的磷酸钙骨水泥的相容性较好，尤其是固化的磷酸钙骨水泥。

Experimental materials: American NPG alloy,β-tricalcium phosphate, calcium phosphate cement, poly-lactic-co-glycolic acid and polytetrafluoroethylene.

实验材料：美国NPG黄合金块、β-磷酸三钙、固化的磷酸钙骨水泥、聚丙交酯乙交酯及聚四氟乙烯。

Keywords polyoxymethylene;polytetrafluoroethylene;kaolin;friction and wear

聚甲醛；聚四氟乙烯；高岭土；摩擦磨损

The chemical and physical characteristics and applications of polytetrafluoroethylene fiber are introduced.

介绍了聚四氟乙烯的化学、物理等特性及其应用。

The main part is made from expanded polytetrafluoroethylene.

主要部分，是由膨体聚四氟乙烯。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。