lead fluoride 中文意思是什麼

lead fluoride 解釋
二氟化鉛
  • lead : n 1 鉛，鉛製品。2 【航海】測鉛，測深錘，水砣。3 〈pl 〉（鋪屋頂的）鉛皮；鉛皮屋頂；【印刷】插鉛，...
  • fluoride : n. 【化學】氟化物。
  1. Methods for chemical analysis of melted welding fluxes. the lead chlorofluoride - edta volumetric method for determination of calcium fluoride content

    熔煉焊劑化學分析方法.氟氯化鉛- edta容量法測定氟化鈣量
  2. Tooth discolouration can lead to intrinsic or extrinsic stains. intrinsic stains may be caused by tetracycline stain, excessive fluoride intake, pulp degeneration after tooth trauma and the presence of metallic restorative materials such as silver amalgam

    外在變色是由於食物中的色素附在牙面上，形成斑漬，只要洗牙便可以清除這類斑漬。內在變色的其中一個原因是在乳齒或恆齒的形成過程中，受到一些藥物例如四環素的影響。
  3. 2. prolonging fireproof compensation lead of precision grade connecting with k dividing code thermocouple, owning polyvinyl fluoride insulation and sheath multi - strand conductor pairs and general shield knited by tinning copper thread, which twisted by 10 compensation pairs. nominal section of conductor is 1. 5mm

    2 .與k分度號熱電偶連接的延長型耐熱精密級補償電纜聚全氟乙丙烯絕緣和護套，多股絞合導體，鍍錫銅線編織對屏加總屏， 10個補償對絞合，導體標稱截面為1 . 5mm 。
  4. Nanosized lead titanate ( pt ) and lead titanate doped with calcium and lanthanum ( pclt ) powder obtained by the sol - gel method was added into vinylidene fluoride - trifluoroemylene [ p ( vdf - trfe ) ] to form nanocomposite to be used as the sensing film of the pyroelectric detector. the experiment results show that after mixing in 0. 16 volume fraction of pclt powder, the pyroelectric coefficient of pttp ( vdf - trfe ) composite film was about 37 % higher than that of the pure p ( vdf - trfe ) film prepared under the same condition, and the voltage figure - of - merit of pt / p ( vdf - trfe ) composite film was about 22. 4 % higher

    用溶膠-凝膠法制備了鈦酸鉛（ pt ）和摻鈣鈦酸鑭鉛（ pclt ）納米粉粒，與聚偏氟乙烯-三氟乙烯（ p （ vdf - trfe ）均勻復合，由於16的摻鈣鈦酸鑭鉛納米陶瓷粉粒的摻入，使得pclt / p （ vdf - trfe ）復合膜的熱釋電系數值提高了約37 ，探測優值提高了約22 . 4 。
  5. A 256 elements infrared array was integrated by 3d cmos technology. nanosized lead titanate powder doped with calcium and lanthanum ( pclt ) obtained by sol - gel method was homogeneously mixed with vinylidene fluoride - trifluoroethylene [ p ( vdf - trfe ) ] as the sensing film

    用摻鈣和銅的鈦酸鉛（ pclt ）納米粉粒與聚偏氟乙烯一三氟乙烯ip （ vdf trfe ）均勻復合，作面陣的敏感膜。
  6. In humans excessive intake ( for adults, over 4 milligrams per day ) over many years can lead to skeletal fluorosis, a well - defined skeletal disorder, and in some plant species, fluoride is more toxic than ozone, sulfur dioxide, or pesticides

    人類過量的攝入（成人每天超過4毫克）多年以後會導致骨骼氟中毒，一種容易識別的骨骼混亂（病癥） ，而且在某些植物中，氟化物的毒性要比臭氧、二氧化硫或者殺蟲劑都大。
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