r-acid的意思|示意

In monitor of the chief systems of experimental cattle, only bradycadia, mild imbalance of acid-base and prolonged P-R interval of ECG were found.

对实验牛心血管系统、呼吸系统，肝肾系统和血液指标监测，仅见心率减慢、轻度酸碱平衡紊乱以及ECG的P—R间期延长，其他指标均无明显变化。

To study the synthesis of chiral precursor R(-)-mandelic acid obtained by asymmetric bioreduction of phenylglyoxylic acid.

目的研究生物不对称催化苯乙酮酸合成手性药物前体R（-）-扁桃酸。

Chiral imine 1 derived from (r) glyceraldehyde acetonide could rapidly react with ketenes 2 which was converted from mixed anhydride or acid chloride under mild conditions.

由(R) -丙叉甘油醛得到的手性亚胺1能与烯酮2在温和条件下迅速反应。

The fuzzy character of colour of the acid base indicator alizarin yellow R is studied in the paper.

研究了酸碱指示剂茜素黄R颜色的模糊特性。

The properties of gold adsorption and desorption of R-519 resin in hydrochloric acid solution were studied by static method.

采用静态法研究了R-519树脂在盐酸介质中吸附、解吸金的性质。

Take up the residue in 2 quantities, each of 5 ml, of dilute hydrochloric acid R.

将供试品炽灼残渣分成两份，每份加入5ml稀盐酸。