最高許可濃度 的英文怎麼說

中文拼音 [zuìgāoxǔkěnóngdù]
最高許可濃度 英文
maximum permissible concentration
  • 最 : 副詞（表示某種屬性超過所有同類的人或事物） most; best; worst; first; very; least; above all; -est
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 許 : Ⅰ動詞1 （稱贊; 承認優點） praise 2 （答應） promise 3 （允許; 許可） allow; permit 4 （許配）enga...
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 許可 : permit; allow; permission; allowance; consent; licence
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased

    文摘:四種羧酰化甲殼素即乙酰化、丙酰化、丁酰化和己酰化甲殼素在二氯乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側基長度增加而略有增加，衍生物的臨界濃度明顯都比原甲殼素高許多，這些規律都可以用鏈剛性的變化來解釋.四種羧酰化甲殼素在剪切時均能形成條帶織構，而且能形成條帶織構的最低濃度有明顯差別，隨側基長度增加而提高，進一步表明側基較長，液晶性減少
  2. Because the limited concentration that macromolecular materials absorb liquid antistatic reagent is very low, it is better if add appropriate solid powder material when preparing high - concentration antistatic master batch. there are a little precipitation in product, but no effect on use effect

    由於高分子材料吸收液體抗靜電劑的極限濃度較低，製作高濃度抗靜電母料時，可加入合適的固體粉末材料。本品有少許沉澱物，不影響使用效果；使用時最好先用乾燥、潔凈的棍棒適當攪拌，以提高本品的均勻性。
  3. Three conclusions are attained among the numerical simulations : first, the lsm method is the optimum method to retrieve the concentrations of the gases. second, the mlsm method does well in calibrating the misalignment. third, only if the snr is higher, the results of the retrieve can be attained truly, and the errors are in the permitted range ; however when the snr is very low, the reliability of the retrieve will decrease

    從文中模擬的計算結果中，可以看出，一是線性最小二乘擬合是求解多組分氣體所構成的矛盾方程組的最佳工具；二是根據坐標匹配變換，採用mlsm反演方法，很好的校正了譜對準偏差，滿足監測的要求；三是信噪比較高時能很好的反演出濃度值，並使的計算誤差在允許的范圍內；而在信噪比比較小時誤差明顯增大，反演結果的可信度降低。
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