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The affections on the yield of DLLA caused by catalyst, temperature and time etc. were studied. By using ethylene glycol as diluent, the distillate temperature of DLLA was lowed and the carbonization phenomenon could be avoided, which caused the yield of DLLA increasing from 36.8% to 51.3%. The molecular weight of PDLLA prepared by this method could reach 184,000. DLLA and PDLLA was characterized and analyzed by DSC, XRD and IR.The key of direct method to synthesize PDLLA is the exclusion of H2O from reaction system.

丙交酯开环聚合制备PDLLA的关键在于中间体D，L-丙交酯的制备，研究了催化剂、反应温度、反应时间等因素对DLLA产率的影响，通过在反应体系中加入稀释剂乙二醇，DLLA的馏出温度明显降低，避免了DLLA在蒸馏过程中产生碳化现象，并使DLLA的平均产率由36.8％提高至51.3％，制备的PDLLA分子量最大值达18.4万。

Based on the theory of heat transfer, hydrodynamics and the theory of metal solidification, by using numerical analysis technology, database technology and visual technology, this paper provided a simulation and check method for the process design to simulate the fluent field and temperature field of the filling solidification and cooling, and can predict the casting quality according to these fields, thus, by this way, improved the quality of casting draft design.

该课题就是为工艺设计提供模拟和校核手段，以传热理论、流体力学及金属凝固理论等为基础，利用数值分析技术、数据库技术和可视化技术等对铸造过程进行仿真，从而模拟出在铸件充型、凝固和冷却中的流场和温度场，并根据这些物理场对铸件质量进行预报，从而提高铸件工艺设计的质量。

Specifically, subdivinon a-1 provides that " subpoena duces tecum authorized by this rule and served on a judgment debtor, or on any individual while in the state, or on a corporation, partnership limited liability company or sole proprietorship doing business, licensed, qualified, or otherwise entitled to do business in the state, shall subject the person or other entity or business served to the full disclosure prescribed by section fifty- two hundred twenty-three of this article whether the materials sought are in the possession, custody or control of the subpoenaed person, business or other entity within or without the state"( CPLR 5224 [a-11] ).

具体地说，子条款a-1规定的"根据本条授权对债务人发出传票，这个人是任何在本国的，或者在公司、合伙有限责任公司或者独资企业里从事商业工作的个人，有执照的、有资格的或者其他有权在本国从事商业工作的人，这个人或者其他单位或者公司应该遵守第5223章的条款中完全披露的规定，不论这些搜集到的材料是在被传唤的个人、公司或者其他在国内的或不在国内的单位的占有、保管或者控制之下。"（CPLR 第5224条[a-11]款，。 PS：我把state翻译成了国家，不知在楼主的原文里是指国家还是指美国的州。如果根据上下文意思是州的话，上述翻译作相应调整即可。

A new discrete reaching law is presented to improve the reaching process of discrete exponential reaching law.The discrete-time variable structure control system designed by this reaching law can not only weaken the chattering and control the system state approach to zero diminishingly,but also keep the basic property of quasi-sliding mode which can cross the switching surface step by step.This method improves the reaching process and enhances the control quality of the control system.

为了改善离散指数趋近律的趋近过程，提出了一种新的趋近律，利用该趋近律设计的变结构控制器，不仅能够大幅度削弱抖振，使系统运动最终趋于原点不存在稳态振荡，而且能使系统的准滑动模态保持步步穿越切换面的基本属性，有效地改善了趋近过程，提高了控制品质。

No, in the shape of this dead man's wife, the bitter: fiend, long since provoked by Atreus the cruel feaster, has made by this full-grown victim payment for those slain babes.

化妆成这个尸体的妻子的，是凄苦的魔王，是阿特柔斯。很久之前，他办了那桌喜宴。现在，以成人的生命，去抵偿造成孩子们死亡的罪行。

This paper describes the temperature field distribution in the gun and the gun deformation caused by this distribution by using ANSYS.

利用ANSYS 对该速调管电子枪的温度场分布及结构的热变形进行了模拟分析。

In this paper, a new method, pre-crosslinking control method, has been developed for controlling the pore structure of carbon membrane. By this method, the pore structure of carbon membrane was controlled by adjusting the fusibility of resin through varying the hexamine content used in the pre-crosslinking treatment.

在实验过程中，发现了一种调控微滤炭膜孔径的新方法，即通过改变预固化过程中六次甲基四胺的用量来控制预固化程度，从而改变成膜树脂粒子在炭化过程中的熔融特性，实现对炭膜孔径的调控，同时影响炭膜强度。

Unit 3 means of transportation by all means by means of by this/ that means by no means follow one's advice as follows in time and space have a new experience from get away from get out of get rid of instead of doing try to do sth try doing sth get close go for a hike watch out protect…from … in a few days' time as with go off see sb off be similar to say "Hi" to sb say sorry to sb.

a form of used to do on the other hand at least at most find out arrive at/in pick up 第三单元交通方式一定；务必通过…的方式通过这种/那种方式决不，一点也不听从某人的劝告如下在时空中在…中拥有新的经历离开；逃离从…中出来；逃避摆脱，除去而不是干某事尽力去做尝试去做接近…去远足，郊游注意；当心保护…使不受几天之后；离…还有好几天正如…一样走开；离去为某人送行和…相似向某人问候向某人道歉拒绝某事以…的形式过去常常另一方面最少；最多找出；弄清楚到达…接上下车；捡起 4 高一各单元重难点高一各 36。

The protein encoded by this sequence was deduced to be consisted with 213 amino acids, signal peptide sequence from 1 to 17 position, and transmembrane regions from 171 to 190 position, whose grand average of hydropathicity is computed to be 0.031, secondary structure is composed by alpha helix (57.28%), extended strand (6.57%) and random coil (36.15%), subcellular localization was cytoplasmic by CELLO v.2.5. There are some function sites predicted by PROSCAN software, such as one N-glycosylation site (151-154aa), one protein kinase C phosphorylation site (193-195aa), two casein kinase II phosphorylation sites (155-158aa and 173-176aa), and one N-myristoylation site (97-102aa).

推测编码蛋白由213个氨基酸组成，信号肽序列位于1-17aa，亲水性指数为0.031，跨膜区域位于171-190aa，二级结构由-螺旋（57.28%）、延伸主链（6.57%）和无规卷曲（36.15%）组成；亚细胞定位于细胞质，含有N-糖基化位点1个(151-154aa)，蛋白激酶C磷酸化位点1个(193-195aa)，酪蛋白激酶Ⅱ磷酸化位点2个(155-158aa and 173-176aa)，N端酰基化位点1个(97-102aa)。

More, however, is made of appearances by this class of persons than by the others; for they throw in the good opinion of the gods, and will tell you of a shower of benefits which the heavens, as they say, rain upon the pious; and this accords with the testimony of the noble Hesiod and Homer , the first of whom says, that the gods make the oaks of the just--

然而，这一类人比另一类人的行为更为表象虚伪；他们对诸神奉上的好意，跟你啰嗦不绝来自天国的如潮利益，正如他们所说的那样，水滴石也穿，日久见人心；相同的道理在高贵的赫西奥德和荷马那里也能找到证据，前者说，正是诸神为正义之士营造了橡栎林

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。