rate-limiting

Cholesterol delivery to the mitochondrial inner membrane is believed to be a rate-limiting step for the acidic pathway of bile acid synthesis.

胆固醇进入线粒体内膜被认为是胆汁酸合成酸性通路的限速步骤。

COX is a membrane conjugated protein and is the rate-limiting enzyme in the synthesis of prostaglandins.

COX是一种膜结合蛋白，是前列腺素生物合成的限速酶。

The one-electron mechanism is predicted to be spin-conserved and the rate-limiting step is the cleavage of the O-H bond with 27.92 kcal/ mol energy barrier.

计算结果表明，单电子机理是自旋守恒的，其决速步骤为第一步中的O-H键断裂，活化能为27.92kcal/mol。

In which the ethylene protonation shows the highest energy barrier and is confirmed as the rate-limiting step.

其中乙烯质子化反应能垒最高，为速控步骤。

Polarization mode dispersion ( PMD ) has a major limiting factor long haul high bitrate fiber transmission system.

偏振 模色散 已成为当前发展下一代高速长距离光纤传输系统的主要限制因素.

The C-H bond activation is the rate-limiting step.

C-H键活化为整个反应的决速步骤。

Hydrolysis is considered as rate-limiting step of anaerobic digestion, thus pretreatments are adopted to accelerate the hydrolysis rate.

水解作为污泥厌氧消化的限速步骤，需要通过预处理加快水解速率。

The corresponding activation energy is slightly higher than that of the rate-limiting step in the stepwise mechanism. It is proposed that there should be a competition between two reaction mechanisms.

该过程的活化能略低于分步反应过程的速控步骤，这意味着这两个机理之间存在竞争。

Fuel vaporization is identified as the combustion rate limiting process, and determines the decomposition rates of monopropellant gas phase of MMH.

以蒸发作为燃烧速率控制过程，由MMH的分解蒸发速率来控制。

The rate-limiting step of the method is an anaerobic treatment process. Recent studies showed that redox mediators could effectively accelerate the process.

此方法的限制步骤为厌氧处理阶段，而氧化还原介体可以有效加速此过程，从而提高处理效率。

In some cases, the hydrolysis step can be rate-limiting reaction.

7在某些情况下, 水解可以是能逐步限速的反应.

Angiotensin-converting enzyme 2 is the rate-limiting enzyme of Ang ( 1-7 ).

血管紧张素转换酶2是Ang ( 1-7 ) 的限速酶.

The surface complexation mechanism of mineral weathering under the condition of acid drainage and add rain effects, the role of organic ligand and the surface reaction rate limiting step are briefly introduced.

对酸性矿水、酸雨酸化条件下矿物风化的表面络合机理，有机配体的作用和速度限定步骤的当前论点作了介绍。

Hydrolysis to amino acid was a rate-limiting step for protein anaerobic degradation;

蛋白质水解为氨基酸是蛋白质类物质厌氧处理的限速步骤；

Our calculations indicated that the total reaction is stepwise and exothermic, and that the rate-limiting step is to overcome the barrier ( 9.36 kcal/ mol) in the second step.

计算结果表明，整个反应是一个放热过程，第二步反应是整个反应过程的决速步骤，反应能垒为9.36kcal/mol。

They often become so frustrated in such unnatural and limiting conditions that they become deranged.

它们在这样不自然又多限制的环境中,变得很沮丧,精神状态也非常混乱.

Conclusion In the early stage of diabetes, Mg supplementation can improve the activities of the crucial rate limiting enzymes relating to glycolytic pathway of diabetic retinal tissue in rats.

结论在糖尿病发病后的一段时期内，补充镁可提高视网膜糖酵解限速酶的活性。

The translocation of cholesterol from the out to the inner mitochondrial membrane is a rate-limiting step that requires steroidogenic acute regulator protein ( StAR) synthesis de novo in steroidogenesis.

在类固醇激素的合成过程中，胆固醇由线粒体外膜到内膜转运的过程是类固醇激素合成的限速步骤，这一步骤必需有类固醇激素灵敏调节蛋白（StAR）的从头合成才能完成。

ENaC is responsible for the rate-limiting step of sodium reabsorption and thus plays an important role in the maintenance of sodium balance, extracellular fluid volume and blood pressure.

ENaC负责钠离子的限速重吸收，对于维持钠的自身平衡、细胞外液量和血压起重要作用。

The formation of ADP-Glucose is a rate-limiting step during starch synthesis. This equilibrium is directly regulated by the supplement of ATP as a substrate, which in turn definite influences the character of plant starch.

ADP-葡萄糖（ADPG）的形成是淀粉合成的限速步骤，该反应平衡受底物ATP供给水平调控，最终影响植物淀粉性状。

But T-DNA integration other than T-DNA transfer and nuclear targeting remains to be the rate-limiting step in Agrobacterium-mediated transformation of indica rice. 2.

但籼稻中农杆菌介导的遗传转化的限速步骤依然是T-DNA整合。

Cyclooxygenase ( COX), also called prostaglandin peroxidate synthetase, is rate-limiting enzyme which catalyses arachidonic acid synthesizing endogenous prostaglandin, including three types of isomeride.

环氧化酶（cyclooxygenase，COX）又称前列腺素过氧化物合成酶，是催化花生四烯酸合成内源性前列腺素的限速酶，包括3种同分异构体。

Heme oxygenase ( HO) is an enzyme that catalyzes the rate-limiting step in the degradation of heme to biliverdin, carbon monoxide and iron.

血红素氧化酶（HO）降解血红素生成胆绿素、一氧化碳和游离铁，是血红素代谢反应过程中的限速酶。

The results indicated that the association/ dissociation kinetics between IgG and protein G affinity packings became the rate-limiting step in perfusion affinity chromatographic separation process.

结果表明，对于小鼠血清中的IgG灌注亲和色谱的分离，由于解离速率影响到传质过程，使之在高流速下的分离受到一定的限制。

Limiting this food marketing is an important preventative strategy for childhood obesity.

限制这类食品广告是预防儿童肥胖的一个重要手段.

According to the basic definition of describing function, we analyse the frequency character of typical non linear rate limiting element in modern flight control system.

针对在现代飞行控制系统中存在的典型非线性速率限制环节，从描述函数的基本定义出发分析了其频率特性；

Heme oxygenase ( HO) catalyzes the rate-limiting step in the degradation of heme.

血红素加氧酶（Heme Oxygenase，HO）是血红素代谢的限速酶。

Aliskiren represents a new principle of blocking the RAAS, inhibiting renin directly and acting at the rate-limiting step.

阿利吉仑代表一种阻滞RAAS的新原理，直接抑制肾素并作用于限速阶段。

DPD is the first rate-limiting enzyme in the catabolism of uracil and thymine, and affects DNA synthesis by decreasing the level of uracil and thymine, the necessary material for DNA synthesis.

DPD是尿嘧啶和胸腺嘧啶分解过程中的第一限速酶，可降低用于DNA合成的尿嘧啶和胸腺嘧啶的水平而影响DNA的合成。

Phytoene synthase is considered to be the first rate limiting enzyme in carotenoid biosynthesis pathway in H. pluvialis.

八氢番茄红素合成酶（PSY）是虾青素合成途径中第一个限速酶。