氟化水 的英文怎麼說
中文拼音 [fúhuàshuǐ]
氟化水
英文
fluoridated water-
Chemical reagent. potassium fluoride dihydrate
化學試劑二水合氟化鉀Water quality - determination of fluoride - fluor reagent spectrophotometric method
水質氟化物的測定氟試劑分光光度法Taken for a fluoride should we be fluoridating our drinking water
對氟化物採取行動應該在飲用水裡頭加氟化物嗎?At the same time, saliva acts as a reservoir for fluorides from toothpaste or from fluoridated water
同時,唾液還充當氟的蓄積池,貯存來自牙膏和氟化水中的氟。Your dentist may recommend regular fluoride treatments to strengthen enamel and resist decay. whenever possible, drink fluoridated water and always use an ada - accepted fluoridated toothpaste
你的牙醫會推薦正規的氟化物治療方案用以強健牙齒的釉質來抵禦牙齒被齲壞。在盡可能時要喝含氟適量的水以及堅持使用含氟牙膏刷牙。Because it well reserves the chemical stability of inorganic glass, it has the following features : low density, low thermal conductivity, vapor impermeability, no water absorption, incombustibility, protection from mould and rat eating, high mechanical strength but easy to cut and able to bear all kinds of chemical erosions except the hydrofluoric acid
由於它完全保留了無機玻璃的化學穩定性,具有容重低導熱系數小不透濕不吸水不燃燒不霉變不受鼠嚙機械強度高卻又易加工,能耐除氟化氫以外所有的化學侵蝕。Beginning with fluorobenzaldehyde, cyfluthrin was synthesized by bromination, acetalation, etherification, hydrolysis, and esterification, with a total yield of 45 %
以對氟苯甲醛為起始原料,經過溴化、縮醛化、醚化、水解、酯化合成氟氯氰菊酯,總收率45 % 。Burning furnace is one key equipment of ahf unit, it supplys heat energy for the turning furnace
燃燒爐是無水氟化氫裝置的關鍵設備,它為轉爐提供熱源。From the viewpoing of the balance of energy, burning furnace is the biggest of the energy consumers, it consumes a lot of fuel oil - light disel
從熱量平衡角度來看,燃燒爐是整個無水氟化氫裝置的耗能大戶,它消耗大量的燃料油?輕柴油。We have prepared a series of neodymium binary / ternary complexes, such as nd ( acac ) 3 ' 2h2o, nd ( tfa ) 3 ' 2h2o, nd ( hfa ) 3 ' 2h2o, nd ( dbm ) 3 ' h2o, nd ( acac ) 3phen, nd ( tfa ) 3phen, nd ( hfa ) 3phen, nd ( dbm ) 3phen, nd ( tta ) 3 ( tppo ) 2, nd ( hfa ) 3 ( tppo ) 2, nd ( acac ) 4hpy, nd ( tta ) 4hpy and ndq3. the effects of organic ligands, synergistic coordination agents and different substitution groups for - diketones on effective line width and photoluminescence intensity of neodymium complexes were investigated. the photoluminescence spectra indicate that synergistic coordination agents can shield neodymium ion and impede water molecules penetrating into inner coordination shell to satisfy large coordination number of nd3 + during hydrous synthesis process, so the luminescence intensity of neodymium ternary complexes is stronger than that of neodymium binary complexes
發光光譜研究表明,由於協同試劑的參與,屏蔽了水分子參與配位,降低了羥基( oh )對釹離子激發態能級~ 4f _ ( 3 2 )的猝滅,三元配合物的熒光強度均比二元配合物強,其中配合物nd ( tta ) _ 3 ( tppo ) _ 2在1340nm處的熒光強度最強,適合作為摻雜的光學活性物質,來制備有源光波導材料;在有水工藝條件下,單純地氟化配體未必能提高釹配合物的近紅外發光性能。Methods for chemical analysis of aluminium fluoride for industrial use - the electrometric method for the determination of water content
工業用氟化鋁化學分析方法電量法測定水分含量Systematic review of water fluoridation
飲用水氟化的系統性綜述On the other hand, fluoride gas makes cotton water resistant, so when it rains it ' s impermeable but still comfortable
另一方面,氟化物氣體可以使棉花防水,當下雨的時候,紡織品會變的不可滲透但同時很舒服。Water quality - determination of fluoride - part 2 : determination of inorganically bound total fluoride after digestion and distillation
水質.氟化物的測定.第2部分:蒸解和蒸餾后無機結合氟化物總量的測定Water quality - physical, chemical and biochemical methods - determination of inorganically bound total fluoride after digestion and distillation
水質.第2部分:物理化學和生物化學法.第48節:分解蒸餾后無機膠粘劑氟化物總含量測定Anhydrous hydrogen fluoride for industrial use. methods of test
工業用脫水氟化氫.試驗方法Anhydrous hydrogen fluoride for industrial use
工業無水氟化氫Acid - grade fluorspar - method for chemical analysis - part 1 : determination of moisture content of a lot
酸性瑩石.化學分析方法.第1部分:批量氟石水分含量的測定Results the turbidity value and fluoride in water were reduced 98 % and 80 % ~ 85 % after treated by electromagnetic fields
結果復合電磁場對水樣的渾濁度去除率達98 %以上,對氟化物去除率達到80 % ~ 85 % 。Methods water sample was treated by electromagnetic fields, and the turbidity value and fluoride in water sample before and after treatment were detected
方法利用復合電磁場對實驗室模擬水樣和現場水樣進行處理,檢測處理前後水中的渾濁度、氟化物濃度,並計算去除率。分享友人