查询词典 h.s.

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。

The anolyte was acidified by the source gas. The effect of temperature, feed concentration of H〓S and CO〓, and gas and liquid flow rates were investigated.

结果表明，通过控制工艺条件，采用碳酸钠溶液选择性吸收混合气中的硫化氢是可行。

In th is paper, w e p ropo se a cert ificateless ring signature scheme, based on the bilinear pairings, w h ich p rovides uncondit ional anonym ity, and p rove th is scheme is existent ially un fo rgeable under adap t ive cho se2message at tack s, in the random o raclemodel, assum ing that the computat ionalD iffie2Hellman p roblem is hard to so lve.

摘 要 在这篇文章里，我们用双线性对构造了一种无证书的环签名方案，并证明它是无条件匿名的，且在随机预言模型中，计算性D iffie2Hellman 问题是难解的，我们方案在适应性选择消息攻击下是存在性不可伪造的，它的安全性比在基于身份的公钥密码体制下高。

Antisepsis of X70 steel in weak acidic solution with H$_2$S .

X70钢在含H2S弱酸性溶液中的防腐研究。

In this paper, operational principle and design scheme of an H(21)° mode filter are dealt with, approximate formula for determining mode coupling quantities according to Bethe's small Holes diffraction theorems is derived, and...

实验证实了理论分析和设计的正确性。波型滤波器的主波和高次波型传输特性得到了比较满意的结果。

One week after the initial tragedy, though, I traveled to Houston, joining Bill and Hillary Clinton, as well as George H. W. Bush and his wife, Barbara, as they announced fund-raising efforts on behalf of the hurricane's victims and visited with some of the twenty-five thousand evacuees who were now sheltered in the Houston Astrodome and adjoining Reliant Center.

在最初的灾害发生后一个星期，我拜访了休斯顿，加入了克林顿、小布什夫妇一起，他们宣布要为飓风的死难者筹款，并看望了当时在休斯顿天文运动中心和附近的展会中心的2万5千名疏散者中的其中一部分。

W.H. Auden called it an "intolerable neural itch," and indeed, that's what it is.

Auden称它为"难耐的神经发痒之处"。事实就是如此。

According to Danto, W.H. Auden's poetry "is indistinguishable from ordinary talking."

照丹托看来，奥顿的诗"和寻常的拉呱不可能划分开"。

He's h avi ng a wonderful year.

他经历了令人惊奇的一年。

Kyle S. Christensen, DDS*, Amy E. Cohen, MS , Fred H. Mermelstein, PhD , Douglas A. Hamilton, MBA , Ewan McNicol, MS||, Najib Babul, PharmD, and Daniel B. Carr, MD

和有背景剂量镇痛相比，只有追加剂量的镇痛所用麻醉药更少，但疼痛发生率高，疼痛评分高，有效无痛期短，母亲满意度低。

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。