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Since the dismutation of superoxide radicals by SOD is a reaction that is rate-limited by diffusion and enhanced by electrostatic guidance, all these structural features may be related to GP-MnSOD's high catalytic activity: first, Lys38 may increase the effective enzyme-substrate association rate by enhancing the electrostatic gradient at its substrate channel; second, an excess of acidic over basic residues makes the negative surface potential of GP-MnSOD more larger than those of other known MnSODs. This may enhance the reaction rate by reducing futile collisions of superoxide radicals with GP-MnSOD's surface.

因此，GP-MnSOD的上述结构特征可能与GP-MnSOD的较高酶活有关：首先，Lys38增加了底物通道口的正静电势梯度，从而可能促进了GP-MnSOD的活性中心与底物的有效结合速率；其次，GP-MnSOD表面覆盖的过量酸性残基使得它比其它MnSOD在底物通道以外的蛋白表面更多地被负静电势所覆盖，这可能有效地减少了超氧阴离子与GP-MnSOD表面的无效碰撞，从而提高了反应速率。

Somesociologists estimated that the divorce rate in China will increase by a rate of 2 million cases per year after the year 2000,but theyaddedthatnowadays people have reasonably, rather than dolefully, accepted divorce despite the rising divorce rate.

有社会学专家预测，进人二○○○年之后，中国的离婚率将以每年二百万对的速度递增。有关专家今天在此间表示，虽然离婚率不断攀升、但人们对离婚的心理反应已从悲戚发展到平和。

By determing the photosynthetic production rates in the 46 hybrids and 21 parental inbred lines, the results show that the dominancy of average photosynthetic production rate in F1 is 16.4 %; when the parent of high photosynthetic production rate is used as female parent, the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8 %, otherwise, used as male parent, by 0.9%.

通过对46个杂种及21亲本自交系光合生产率的测定结果表明：F_1平均光合生产率优势为16.4%。用高光合生产率亲本作母本时，F_1光合生产率优势超亲8.8%，反交F_1光合生产率优势超亲0.9%；母本光合生产率遗传力，大于父本光合生产率遗传力11倍。低光合生产率亲本的光合生产率遗传力大于高光合生产率亲本光合生产率的遗传力1.6倍。

According to 2008 adjusted middle and long-term railway development plan, the national railway operating mileage will reach 120,000 kilometers by 2020, in which the rate of double-track rate and electrified rate will reach above 50% and 60% separately.

根据2008年调整后的中长期铁路发展规划，到2020年，全国铁路营业里程将达到12万公里以上，复线率和电化率将分别达到50%和60%以上。

In order to overcome the difficulties in measuring the flow rate of oil-water two-phase flow, the measurements of total mass flow rate, respective mass flow rate and real density of oil-water mixture with a double-U Coriolis flow meter were investigated.

针对油水两相流流量的测量难题，采用双U型Coriolis流量计对油水混合物的总质量流量、分相质量流量和真实密度进行了测量研究。

In this study,we analyze several calculation methods of the production rate of methane in rubbish and make a detailed calculation of the production rate and the cumulate output of methane. On the basis of this study,we use a real rubbish dumping field to calculate the production rate and the cumulate output of methane.

本文比较分析了几种常用的有关垃圾场甲烷气产率计算方法，并详细计算了甲烷的产率及累计产量，在此基础上用一个比较实际的垃圾填埋场计算垃圾填埋过程中甲烷气的产率情况及累计产量，为垃圾填埋场的沼气发电提供了可靠的资料。

The solids mass flux in the riser is maintained by controlling the liquid flow rate through the eductor (which was precalibrated for solids flow rate as a function of motive water flow rate).

用喷射器(已把固体流速预标定为水流速函数)控制液流法来维持提升管中的固体物料流。

Annual Percentage Rate: This one is the annual rate, which is the effective interest rate to be paid on a loan.

年利率：一，这是每年的利率，这是有效的利息须支付的一个高利贷。

The thesis, which is a systemic study on interest rate risk measurement of Chinese commercial bank, quantitates accurately Chinese commercial bank interest rate volatility with VaR model based on GARCH(1,1) family model and will be a good reference for Chinese commercial bank to establish effective interest rate risk management system.

本文是对我国商业银行利率风险测度的系统研究，通过使用基于GARCH(1，1)族模型的VaR方法使商业银行的利率波动得到精确的估计，有利于我国商业银行建立有效的利率风险管理体系。

There doesn'texist relation between real effective exchange rate and interest rate, also between realeffective exchange rate and monetary supply.

人民币实际有效汇率与利率和货币供应量之间不存在长期均衡关系。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。