中草酰

This has a higher affinity for carbon dioxide than ribulose bisphosphate carboxylase.

二氧化碳首先被固定为草酰乙酸，接着草酰乙酸被还原为苹果酸或天冬氨酸，然后被运到维管束鞘细胞中去。

It is also an important intermediate of GLYCOLYSIS, being the immediate precursor of pyruvic acid.

它也是糖酵解过程中重要的中间物，是丙酮酸的直接前体，在乙醛酸循环中由草酰乙酸产生而合成葡萄糖。

This leaves the mitochondrion and is converted back to oxaloacetate in the cytosol by cytoplasmic malate dehydrogenase.

苹果酸离开线粒体，在胞质溶胶中被苹果酸脱氢酶又转变回到草酰乙酸。

Malate dehydrogenase which catalyzes the reversible reaction from oxaloacetate to malate ubiquitously exists in nature.

苹果酸脱氢酶普遍存在于各种生物中，它负责催化草酰乙酸和苹果酸之间的相互转换。

The structure analysis indicates that the reverse symmetry ligand H4LB molecules are linked into a 2D supermolecular network by two types of hydrogen bonds. One type occurs between the oxalamide oxygen group and the phenol hydroxyl qroup of the nearest molecule with d=2.906(2) and ∠O-H…O=151.8°. The other type is between the oxalamide nitrogen group and the oxalamide oxygen group of anther molecule with d=2.849(2),∠N-H…O=158.7°.

晶体结构研究表明配体H4L为顺式桥联分子，晶体中存在两种氢键，一种是草酰胺基团的O原子与苯环上的酚羟基形成O-H…O氢键[d=2.906(2)，∠O-H…O=151.8°]；另一种是草酰胺基团的氨基与相邻草酰胺基上的O原子形成N-H…O氢键[d=2.849(2)，∠N-H…O=158.7°]，通过上述两种氢键将化合物H4LB连接成二维网络结构。

The configuration of oxalyl fluoride neutral molecule2 is studied at HF、MP2、QCISD and B3LYP level with 6-311++G** basis sets.

方法采用量子化学中从头算的方法HF、MP2、QCISD和密度泛函中的方法B3LYP在6-311++G**水平上对草酰氟中性分子2做了构像分析，在B3LYP/6-311++G**水平上，分子轨道分析和自然键轨道分析研究了2种构型的稳定性。

Reaction of 9-bromofluorenewith diethyl malonate and sodium carbonate gives diethyl 2-(9-Fluorenyl)malonate.Aminolysis of diethyl 2-(9-Fluorenyl)malonate in ethylenediamine and propylene diamine give〓 and 〓, respectively.〓 and 〓 were synthesized by the reaction of 9-bromofluorene with oxalyl bisethylenediamine. Copper and nickel complexes of 〓 and 〓 were obtained by the reaction of 〓 and 〓 with copper and nickel salt, respectively, in aqueoussolution and extrusion of two hydrogen ions from the amide groups.

使9-溴芴与丙二酸二乙酯在无水碳酸钠存在下反应合成出2-(9-芴基)丙二酸二乙酯。2-(9-芴基)丙二酸二乙酯在乙二胺中胺解得到配体〓，2-(9-芴基)丙二酸二乙酯在1，2-丙二胺中胺解得到配体〓，使9-溴芴与草酰二乙二胺作用得到配体〓和〓与相应的金属盐作用分别得到它们的铜、镍配合物。

In the last reaction of the citric acid cycle, malate is dehydrogenated to regenerate the oxaloacetate necessary for the entry of acetyl-CoA into the cycle

在三羧酸循环的最后一个反应中，苹果酸脱氢重新生成草酰乙酸以供乙酰辅酶A进入循环所必需

Citrate synthase plays a key role in regulating TCA cycle and is responsible for catalysing the synthesis of citrate from oxaloacetate and acetyl CoA.

柠檬酸合成酶在TCA循环中起着关键的调节作用，它催化乙酰辅酶A与草酰乙酸缩合成柠檬酸。

Transport of oxaloacetate Oxaloacetate, the product of the first step in gluconeogenesis, must leave the mitochondrion and enter the cytosol where the subsequent enzyme steps take place.

草酰乙酸的运输在糖异生作用中，第一部产物草酰乙酸必须离开线粒体并进入胞质溶胶，在胞质溶胶中进行以后的酶促反应步骤。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。