free acid 中文意思是什麼
free acid
解釋
游離酸-
It is a short cut to use the free acid.
可走捷徑，那就是使用游離的酸。 -
Solvent - free synthesis of pentaerythritol fatty acid ester as lubricant base oil
無溶劑條件下合成潤滑劑基礎油脂肪酸季戊四醇酯 -
Sales : imported and domestic natural rubber, butylbenzene rubber, polybutadience rubber, butyronitrile rubber, epdm rubber, butyl rubber, chlorosulfonated polyethylene tyre types superfine, smell - free, butyl, butyronitrile, color and milk natural rubbers, compound rubbers and reclaimed rubbers ; raw and auxiliary materials for rubber chemical such as rubber accelerator, antiager, black, paraffin, octadecoic acid, zinc oxide, magnesium oxide, titanium pigment, coumarone and powder sulfur ; different specifications of epdm color granules, crossover antiskid rubber floor brick, plastic rubber sites, lawn layout, different specifications of antiskid rubber floor brick, rubber blind - people road brick, plant brick, tree guard brick, top adiabatic brick, road rubber reducer brick, special green rubber tyre rubber granule, rubber powder and product, different rubber and plastic pipe, adhesive tape and plate, flexible rubber soft joint, rubber stop tape, bridge extension device, natural rubber plate pedestal, water - expanding rubber, rubber and plastic air duct, pe / pp / pvc water pipe, fulgurite, flame retardant wire gutter, floor wire gutter, mc nylon product, rubber and plastic machinery and fitting relieve, and processing of different ordinary and special rubber and plastic and nylon products
經營銷售：進口、國產天然膠、丁苯膠、順丁膠、丁腈膠、三元乙丙膠、丁基膠、氯璜化聚乙烯、輪胎類精細、無味、丁基、丁腈、彩色、乳膠類等多種型號天然橡膠、合成橡膠和再生橡膠；硫化促進劑、防老劑、炭黑、石蠟、硬脂酸、氧化鋅、氧化鎂、鈦白粉、古馬龍、工業硫磺粉等各種橡膠化工原輔材料；各種規格epdm彩色顆粒，天橋防滑橡膠地磚、塑膠場地、人造草坪鋪裝、各種規格防滑橡膠安全地磚、橡膠盲道磚、植草磚、樹木圍護磚、屋頂隔熱板、道路橡膠減速塊，專用綠色環保型橡膠輪胎膠粒、膠粉及成品，各類橡膠、塑料膠管、膠帶、膠板，可撓曲橡膠軟接頭，橡膠止水帶，橋梁伸縮裝置，天然膠板式橡膠支座，遇水膨脹橡膠，橡膠、塑料導風筒， pe pp pvc水管、電管、阻燃線槽，地板線槽、 mc尼龍產品、橡塑機械及配件調劑，並承接各種普通、特種橡塑、尼龍產品加工製造。 -
Located in the longjiang section of national highway 325 in foshan city in the pear river delta with developed industry, our factory is engaged in the production of totally - enclosed maintenance - free storage battery and dry - type lead acid storage battery, and designs and manufactures serial products in order to meet the present and future higher requirements. at present our factory has five major brands " jianfeng, aofeng, gangling, weiling, wangpu ", those products are known for their quick - start, large capacity and convenient use in the market, and are highly praised by vast motorcycle users and professionals
我廠位於工業發達的珠江三角洲佛山市龍江段325國道旁，是一家從事生產全密封免維護蓄電池和干荷式鉛酸蓄電池，是為了滿足現在和未來更高要求面設計製造的系列產品，本廠現有「尖鋒、澳鋒、港靈、威靈、旺普」五大品牌，該產品在市場以其啟動快捷、容量強勁，使用方便而著稱，深受廣大摩托車用戶和專業人士一致好評。 -
If you need moisturizing, choose an oil - free moisturizer that contains humectants such as glycerin, na - pca and hyaluronic acid, et cetera ( see ingredients table in the feature article of cosmetics )
如果你需要保濕，可以選擇含有甘油，羧基酸，透明質酸等濕潤劑的無油產品。 -
The results are listed as follows : ( 1 ) the inorganic acetate of y, ba and cu were used as precursors, and diethylenetriaminejactic acid and a - methacrylic acid as complexing agents, respectively. the stable fluorine - free ybco sol can be obtained
研究結果表明： （ 1 ）採用y 、 ba和cu的無機鹽為出發原料，採用乳酸、 ?甲基丙烯酸及二乙烯三胺作絡合劑，可以制得易於成膜且穩定性良好的無氟系ybco溶膠。 -
Sulphuric acid and oleum for industrial use. determination of total acidity, and calculation of free sulphur trioxide content of oleum. titrimetric method
工業用硫酸和發煙硫酸.總酸度的測定和發煙硫酸中游離三氧化硫成分的計算.滴定法 -
This paper introduced the improves of roasting - sodium processing and such pollution - free processing as acid leaching - extration, roasting in air - acid leaching - extration, liming roasting - alkali leaching on extraction of v2o5 from stone coal, the total recovery rate obtains enhances, the industrial application prospect is good
摘要介紹了石煤提釩傳統工藝的改進以及酸法萃取、無鹽焙燒酸浸萃取、氧化焙燒堿浸等幾種從石煤無污染提取五氧化二釩的工藝流程，上述工藝不但生產過程無環境污染，釩的回收率還大有提高，是很有前途的清潔生產工藝。 -
White acid free tissue paper inside the box
盒內裝有無酸的白色紙巾。 -
Together with “ free ” hydroxyl ions already present in solution, these hydroxyls are titrated with protons ( acid ), to a thermometrically determined endpoint
游離的烴基離子存在於溶液中，用質子（酸）就滴定這些烴基離子，出現了一個溫度測量的終點。 -
The full set of 1999 hong kong definitive stamps is beautifully arranged in an elegant wooden black frame and mounted on environmental friendly acid free paper to ensure its long - lasting appreciation value. " issued in a limited edition of 2000 sets only, every frame is uniquely mounted by hand and numbered individually, " added mr luk
一九九九年香港通用郵票畫架設計精美，以典雅的黑木作外框，整套郵票排列在不含酸性的環保紙上以確保能恆久珍藏。陸炳泉續說：這款郵票畫架限量發行二千套，每套均由人手裝嵌並且有獨立編號。 -
Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0 -
The corrosion behavior of nanocrystalline ( nc ) copper bulks with various grain sizes prepared from igc ( inert gas condemsation ) and vacuum annealing in comparison with conventional microcrystalline ( mc ) copper ( as - rolled and electrolytic ) in acid copper sulphate solution and neutral solution containing chlorides under free corrosion conditions and anodic polarizations has been studied using potentiodynamic polarization, potentiometric analysis, cyclic voltammetry and electrochemical impedance spectroscopy. x - ray diffraction was used to estimate the grain size of the annealed nc copper. field emission gun scanning electron microscopy and x - ray energy - dispersive spectroscopy was used to characterize the surface morphology and analyze the surface composition after the polarization and potentiometric test of both nc and mc copper
本文研究了用igc （惰性氣體蒸發凝聚原位溫壓法）制備並真空退火到不同晶粒尺寸的納米晶銅和微米晶銅（冷軋紫銅、電解銅）在酸性硫酸銅溶液和中性含氯溶液中，在自腐蝕狀態和陽極極化狀態下的腐蝕性能。使用了動電勢極化、電位測定、循環伏安法（ cv ）和電化學阻抗譜（ eis ）等方法。 x -射線衍射（ xrd ）的方法用來估算納米晶銅晶粒尺寸。 -
We will mount the historical photographs on acid - free or low alkaline paper. then the photographs can be stored inside archival boxes which are acid - free or low alkaline. this can prevent the contamination of the surface of photographs by dirt particles and wrapping paper that may lead to the chemical reaction like oxidation, yellowing and colour fastness
部份藏品如歷史圖片及明信片更需要特別的保護，博物館會使用不含酸性或低鹼度的紙張及紙板裝裱歷史圖片，再存放于不含酸性或低鹼度的紙盒內，防止圖片上藥膜受到空氣及一般包裝紙的雜質污染而產生化學作用，如圖片氧化、變黃、退色等。 -
Determination of free acid in acid anhydride - based hardeners for epoxide resins
環氧樹脂用酸酐基硬化劑中游離酸的測定 -
Chemical analysis of fertilizers for import and export. determination of free acid content
進出口化肥檢驗方法.游離酸的測定 -
Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride
塑料.環氧樹脂用固化劑和促進劑.酸酐中游離酸測定 -
En iso 7327 plastics. hardeners and accelerators for epoxide resins. determination of free acid in acid anhydride
塑料.環氧樹脂硬化劑和促凝劑.酸酐中游離酸的測定 -
Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride iso 7327 : 1994 ; german version en iso 7327 : 1997
塑料.環氧樹脂固化劑和催化劑.酸酐中游離酸測定 -
Taurine ( tau ), a ? - amino acid containing sulphur, is vital free acid in the body and perform various biological effects
牛磺酸（ tau ）是一種含硫的-氨基酸，是人體內的一種必需的游離氨基酸，有穩定細胞膜和抗氧化等多種生物學效應。
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