酸性类

The appearance of smectite suggests that it enriched in magnesium, but no strong eluviation, which belongs to cold and arid acid environment. 5 Three soil sites have different moisture.

水云母类矿物处于风化的初级阶段，蒙皂石的出现，反映了本地区富含镁元素，是没有强烈淋溶、寒冷干旱的弱酸性环境。

Cephalotaxine ester of 2-oxo-6-methylheptanoic acid was treated with lithium diisopropylamide and Me O-(1-methoxyisopropyl)glycolate to give a mixture of homoisoharringtonine and its stereoisomers with 56% yield. The four stereoisomers separated by TLC showed identical mass spectra and almost superimposed IR but with different 1H NMR spectra. The configuration of the 2'-C and 3'-C of the four isomers were postulated based upon their 1H NMR spectra as compared with the 1H NMR spectra of isoharringtonine and its stereoisomers.

2-氧代-6-甲基庚酰基三尖杉碱(3)与0-(1-甲氧基异丙基)羟基乙酸甲酯(4)在强碱性试剂二异丙胺锂存在下，起亲核加成反应，反应中间体5在室温用酸性丙酮水解，得到一种新的三尖杉酯类生物碱一一高异三尖杉酯碱(6c)及其立体异构体(6a、6b、6d)的混合物，产率56%、通过制备薄层层析分得这四个立体异构体，它们的1H NMR和异三尖杉酯碱及其立体异构体的1H NMR类似，推定了它们的绝对构型。

Acid or granitic glass; usually dark, but transparent in thin pieces.

酸性或花岗石类玻璃，通常为黑色，但片状时透明。

Mr Zhang, I would suggest that starting from now you reduce your intake of the acidic meaty

张先生我建议你从现在起少吃酸性的荤食类

Mr Zhang, I would suggest that starting from now you reduce your intake of the cidic meaty dishes.

张先生我建议你从现在起少吃酸性的荤食类

Mr Zhang, I would suggest that starting from now you reduce your intake of theacidic meaty dishes.

张先生我建议你从现在起少吃酸性的荤食类

Mr Zhang, I would suggest that starting from now you reduce your intake of the acidic meaty dishes..

张先生我建议你从现在起少吃酸性的荤食类

DFerric Perchloric acid method was used to determine the content of ester-series alkaloid, and acid dye colorimetry was used to determine the content of total alkaloid in Complex Prescription Monkshood plaster.

方法分别采用改良异羟肟酸铁－高氯酸铁法及酸性染料比色法测定制剂中的酯型生物碱及乌头类总生物碱的含量。

MethodsFerric Hydroxamic acid―Ferric Perchloric acid method was used to determine the content of ester-series alkaloid, and acid dye colorimetry was used to determine the content of total alkaloid in Complex Prescription Monkshood plaster.

方法分别采用改良异羟肟酸铁－高氯酸铁法及酸性染料比色法测定制剂中的酯型生物碱及乌头类总生物碱的含量。

aim:to investigate the correlations between plasma levels of tryptase, interleukin 8 (il 8), interleukin 12 (il 12) and eotaxin in the patients with grass pollinosis in summer and autumn and their clinical significances.

目的：检测夏秋季花粉症患者血浆类胰蛋白酶， il 8，il 12和嗜酸性粒细胞趋化因子水平，探讨其临床意义。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。