一酸的

A salt or ester of acetic acid .

高氯酸形成的一种盐。

A new catalyst for methanol synthesis was prepared by alternant precipitation between acid and alkali.

采用酸-碱交替沉淀法制备了一种新型的低压甲醇合成催化剂。

An ester or a salt of oleic acid .

异氰酸形成的一种盐或酯。

Metabolic acidosis is a disturbance in the body's acid-base balance that results in excessive acidity of the blood.

代谢性酸中毒是一种最终导致血液中酸过多的体内酸碱平衡紊乱。

As a natural linear polysaccharide, alginate has been widely used in tissue engineering and other relative fields.

作为一种天然线性多糖，海藻酸盐以其良好的生物相容性广泛应用于组织工程及其相关领域。

Calcium alginate is suitable for the growth of BMSCs and is believed to be an optimal bone and cartilaginous engineering carrier.

藻酸钙适合骨髓基质细胞生长，是一种良好的骨及软骨组织工程载体。

A photoresist composition including a polymer is disclosed, wherein the polymer includes at least one monomer having the formula: wherein, R1 is selected from H, linear, branched or circular alkyl with 1-20 carton atoms, linear, branched or circular alkyl with 1-20 C atom, which is perfluorinated or semi-perfluorinated; and CN; R2 is alicyclic group with 5 or more carbon atoms; X is selected from methylene, aether, ester, amide and the connecting part of the carbonate; R3 is linear or branched alkylene with one or more carbon atoms or perfluorinated or semi-perfluorinated linear or branched alkylene; R4 is selected from H, CH3, CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated aliphatic group; R5 is selected from the CF3, CHF2, CH2F and perfluorinated or semi-perfluorinated substituted and unsubstituted aliphatic group; n is 1 or higher integer; OR12 is OH or at least an acid unstable group selected from the tert-alkyl carbonate, tert-alkyl ester, tert-alkyl aether, acetal and ketal.

本发明公开了一种包含一种聚合物的光刻胶组合物，该聚合物包括至少一种具有下列结构的单体：其中，R 1 选自氢、具有1～20个碳原子的线形、支化或环状烷基、半氟化或全氟化的具有1～20个碳原子的线形、支化或环状烷基、以及CN；R 2 为具有5个或更多个碳原子的脂环基团；X为选自亚甲基、醚、酯、酰胺和碳酸酯的连接部分；R 3 为具有1个或多个碳原子的线形或支化亚烷基或者半氟化或全氟化的线形或支化亚烷基；R 4 选自氢、甲基(CH 3 )、三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的脂族基团；R 5 选自三氟甲基(CF 3 )、二氟甲基(CHF 2 )、氟代甲基(CH 2 F)、以及半氟化或全氟化的取代或未取代的脂族基团；n为1或更大的整数；OR 12 为OH或者选自叔烷基碳酸酯、叔烷基酯、叔烷基醚、缩醛和缩酮的至少一种酸不稳定基团。

STUDY DESIGN: A case of thoracic myelopathy with alkaptonuria is presented.

研究设计：报道一例胸椎脊髓病合并尿黑酸尿的病例。

A novel method for synthesizing the amino-sulfonic acid series amphoteric surfactants was developed.

给出了氨基磺酸系两性表面活性剂的一种新合成方法。

Antacid therapy result is not satisfactory, now it become a hot topic.

抑酸治疗效果不理想，目前认为NERD是一种异质性疾病，逐渐成为研究的热点。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。