查询词典 r.h.

To understand the thermodynamic process of the transesterification, the thermodynamic properties (△r H o,△r S o,△r G o, K p ) of the reaction for production of DPC and anisole from 373 K to 473 K was calculated by using Material Studio and ChemCAD software as well as Benson and Joback group contribution methods.

DMC与苯酚酯交换合成DPC反应热力学方面的研究报道很少，散见于一些工艺设计专利中，且都未对数据来源做详细介绍，很难对数据的可靠性进行验证。

Methods］By observing the cytoplasmic Ca2+ concentration change of single cardiocyte in I/R status and the effect of Na+/H+ permutoid retarder to Ca2+ concentration in different phases (diabetes pure oxygen-lack deficit group called DM group,the oxygen deficit/reaeration on entire journey for medicine group called DM-EIPA group, the first group giringmedicine before reaeration on called DM-EIPA 1 group, and the second group giringmedicine before reaeration on called DM-EIPA 2 group) to detect the protection mechanism of Na+/H+ permutoid retarder to diabetic mouse cardiac muscle cell oxygen deficit/reaeration injury.

方法］ 通过观察糖尿病鼠单个心肌细胞在缺氧/复氧时细胞胞浆Ca2+浓度的动态变化以及Na+/H+交换体阻滞剂在不同时相（糖尿病单纯缺氧组即DM组，缺氧/复氧全程给药组即DM-EIPA组，复氧前给药1组即DM-EIPA 1组，复氧前给药2组即DM-EIPA 2组）对Ca2+浓度的影响来研究Na+/H+交换体阻滞剂对糖尿病鼠心肌细胞缺氧/复氧损伤的保护机制。

The results show that the formation of stable radical AH-R*between the antioxidant and the carbon-centred free radical R*from fat may be a main mechanism of the antioxidation to retard lipid rancid, and dihydrotanshinone I can also act as an antioxidant by donating a hydrogenatom to R*, becoming themselves an unreactive radical A*.

结果表明，抗氧化剂与油脂中碳中心自由基复合成稳定自由基，可能是丹参醌抑制或阻止油脂氧化酸败的主要途径，双氢丹参醌Ⅰ也可借助释放活泼H（本身转化成稳定自由基A*）有效清除R*。

The results show that the formation of stable radical AH-R* between the antioxidant and the carbon-centred free radical R* from fat may be a main mechanism of the antioxidation to retard lipid rancid, and dihydrotanshinone Ⅰ can also act as an antioxidant by donating a hydrogenatom to R*, becoming themselves an unreactive radical A*.

结果表明，抗氧化剂与油脂中碳中心自由基复合成稳定自由基，可能是丹参醌抑制或阻止油脂氧化酸败的主要途径，双氢丹参醌Ⅰ也可借助释放活泼H（本身转化成稳定自由基A*）有效清除R*。

Whereas, at the second stage H-transfer from indole to malonate occurs with the formation of the new C—H bond, the energy barriers calculated for this step are 99.2 and 115.1 kJ/mol for the R - and S -configuration product, respectively.

其中第一阶段由复合物经过渡态TS1生成中间体IM，是C—C键的形成阶段，该阶段的活化能垒较后一阶段要大，是该反应的决速步骤；第二阶段由IM经过渡态TS2生成产物，完成H迁移和C—H键的形成。

The protocol of computing reciprocals of secrets presented by Gennaro R, Jarecki S, Krawczyk H and Rabin T is also modif...

文中还改进了由Gennaro R， Jarecki S， Krawczyk H和Rabin T提出的计算秘密值的倒数的协议，使其效率得到了提高。

The optimal medium components were: sodium alginate 3 g/L,(NH4)2SO4 3 g/L, NaCl 20 g/L, KH2PO4 0.1 g/L, CaCl2 0.1 g/L; The optimal culture conditions were: 25 ml medium in 250 mL Erlenmeyer flask, inoculum's volume 3%, shaking speed of 150 r/min, initial pH 7.5, at 28°C for 24 h.

该菌株产酶的最佳培养基组成为：褐藻胶3 g/L、(NH4)2SO4 3 g/L、NaCl 20 g/L、KH2PO4 0.1 g/L、CaCl2 0.1 g/L；最佳培养条件为：250 mL三角烧瓶中装液量25 mL、接种量3%、摇瓶转速150 r/min、pH7.5、培养温度为28℃、培养时间为24 h。

We provide a detailed monthly report to your company's H.R.

同时，每个月我们会向贵公司的H.R。

Thus, H.R. 1, would be the first bill introduced in a new session of Congress or the House of Representatives (a session of Congress lasts for two years).

因此，H.R。 1是指众议院新一期会议的第一个议案（国会的每期会议任期两年）。

Bills in the House of Representatives are given the initial H.R., and Senate Bills are given the initial S.

众议院的议案以大写字母H.R开头，而参议院则以S开头。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。