weak acid 中文意思是什麼

weak acid 解釋
弱酸
  • weak : adj 1 柔弱的；虛弱的，有病的。2 無力的，軟弱的；（根據等）不充分的，薄弱的。3 不中用的；愚鈍的；...
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  1. Study on the dissolving process of powdery patina in neutral and in weak acid aquatic solution

    弱酸性環境中溶解過程的實驗研究
  2. A weak phosphoric acid made from florida rock containing 25% f gives a 54% acid containing 0. 4f.

    用佛羅里達礦石制得的稀酸（含F25）可以濃縮成含F04的54酸。
  3. Thus theoretically, weakly acidic drugs ( eg, aspirin ) are more readily absorbed from an acid medium ( stomach ) than are weak bases ( eg, quinidine )

    因此，從理論上講，弱酸性藥物（如阿司匹林）在酸性介質中（胃腔）比弱堿性藥物（如奎寧）更易吸收。
  4. Sam has three ionizable groups besides the sulfonium pole : the carboxyl and the aminic groups of the amino acidic chain with pk 1. 8 and 7. 8 respectively and the aminic group of the purine with pk 3. 4. in an acid environment sam is positive charged, so it could be adsorbed by weak - acid cation exchange resin

    Sam除具有一個帶正電荷的鋶外，還有三個可離子化的基團： pk _ a分別為1 . 8 、 7 . 8的氨基酸鏈上的羧基和氨基， pk _ a為3 . 4的嘌呤環上的氨基。
  5. Determination for strong - base group, weak - base group and weak - acid group exchange capacity of acrylic type anion exchange resins

    丙烯酸系陰離子交換樹脂強堿基團弱堿基團和弱酸基團交換容量測定方法
  6. Carbon dioxide ( co2 ) combines with water to form carbonic acid ( h2co3 ), the same weak acid found in carbonated beverages

    二氧化碳（ co2 ）和水結合，形成碳酸（ h2co3 ） ，這種弱酸也可以在碳酸飲料里找到。
  7. In the beginning, the development history and the current development of the technique of fiber detection are introduced briefly. then, discussed in detail are strong coupling theory concerning the fbt coupler and the weak coupling theory concerning the hf acid etching and the side - polishing coupler. from the analysis of fiber coupling equations, the solution of the equation and the formula of the coupling coefficient are derived

    本文首先概述了光纖竊聽技術的發展歷程和現狀，有針對性地分析了關于光纖竊聽技術中的光纖耦合問題，並詳細介紹了用於熔融拉錐耦合器的強耦合理論和用於氫氟酸腐蝕與邊研磨光纖耦合器的弱耦合理論;分析了耦合模方程，得出了耦合模方程的形式解，推導出耦合系數的計算公式。
  8. Having been engaged in technological consultation on inorganic chemical engineering, and make a speciality of purification of the gas from fluidized - bed roaster, and the treatment of the acid sludge and weak acid in the purification system of sulphuric acid

    從事無機化工技術咨詢，擅長硫酸製造、制酸爐氣凈化技術以及凈化所產生酸泥和稀酸治理技術咨詢。
  9. In this paper, the progress of in - situ leaching technique is summarized, the characteristics of in - situ weak - acid leaching technique of uranium are discussed, and the leaching mechanism and technology, layout size of injecting and pumping holes, selection and acidity of lixiviant, the determinations of acid consumption and leaching time for in - situ weak - acid leaching of uranium are studied

    摘要總結了地浸技術的發展，論述了低酸浸出采鈾技術的特點，對低酸地浸采鈾的浸出原理和工藝、鉆孔網度、浸出液的選擇及其酸度、耗酸量和浸出時間的計算進行了研究。
  10. Features : contain the natural extracts of chamomile and aloe, and natural amino acid. with temperate texture, it can form the cutin protection membrane on the skin surface, strengthen the protection ability of the cuticle, lock the moisture of the skin cell effectively at the same time. to make the skin keep moist constantly, prevent the cell ' s lipid from excessive oxidize, improve sensitive skin, make weak skin recover health, be full of elasticity and gloss

    特點：蘊含天然洋甘菊精華、蘆薈精華、天然氨基酸，質地溫和，能迅速在肌膚表面形成角質防禦保護層，加強角質層的保護能力，同時有效鎖緊肌膚細胞的水份，令肌膚時刻保持潤澤剔透，避免細胞的脂質過分氧化，改善敏感肌膚，使脆弱的肌膚回復健康、充滿彈性光澤。
  11. ( 2 ) through consuming co2 and secreting alkaline matters from their cellls to soil, micro - algae can improve soil ph value, and transform the weak acid soil into weak base soil. ( 3 ) through photosysthesis transforming co2 into organic matters, micro - algae can increase the content of soil organic matter

    肥沃土壤中的微藻接種進入貧瘠土壤后，在黑暗條件下逐漸死亡，有光條件下的微藻經過一段時間的適應后，到第90天時，每克土中的微藻數量增長到接種量的7 - 8倍。
  12. Virtual instrument based on labview 7 express for determinating dissociation constant of weak acid by conductivity

    電導法測定弱酸離解常數的虛擬儀器
  13. When the weak acid is given orally, the concentration gradient for un - ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa

    當這種弱酸性藥物經口服給藥時，胃與血漿之間的非解離型藥物濃度梯度很大，從而有利於透過胃粘膜擴散。
  14. Determination for hydrogen form of weak acid cation exchange resins

    弱酸性陽離子交換樹脂氫型率測定方法
  15. They involve a chemical equilibrium between a weak acid and its salt or a weak base and its salt

    它包含弱酸及弱酸鹽與弱堿和弱堿鹽之間的化學平衡。
  16. Apply to water, water, steam, all kinds of oils, solvents, weak acid, alkali, ethanol, and other media

    適用於水、海水、蒸汽、各種油類、溶劑、弱酸、堿、乙醇等介質。
  17. The product is a weak acid dyestuffs of high grade, it filled in the gaps in china, the quality has reached the same product level of sandoz co. of switzerland. the annual output is 150 tons

    該產品是高檔弱酸性染料，填補省內空白，產品質量達到瑞士山道士公司同類產品水平，年生產能力150噸。
  18. Note : guide gas cable of cable liquid - level transmitter adopts high - performance environmental protection material such as import abrasion - proof, weak acid - proof contraction, anti - low temperature, and may apply for food, medicine and other survey fie

    注：纜式液位變送器的導氣電纜採用進口耐磨耐弱酸抗低溫等高性能的環保型材料，可用於食品醫藥等測量現場。
  19. Note : guide gas cable of cable liquid - level transmitter adopts high - performance environmental protection material such as import abrasion - proof, weak acid - proof concentration, anti - low temperature, and may apply to food, medicine and other survey field

    注：纜式液位變送器的導氣電纜採用進口耐磨耐弱酸抗低溫等高性能的環保型材料，可用於食品醫藥等測量現場。
  20. We extractct sam from the cell by the perchloric acid, then neutralize the extraction with khco3. using the weak - acid caion exchange column chromatography we separate sam from the mixure

    本文根據sam帶電性，確定了先高氯酸抽提、 khco _ 3中和，再用弱酸性陽離子交換樹脂純化的工藝路線。
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