性选择的

The translator's linguistic choices and pragmatic translation strategies must focus on conveying the author's intentions without putting the audience to unnecessary processing efforts in achieving the contextual effects in the interpretation intended by the author. The choices and strategies should also achieve the similar contextual effects in the interpretation of the author's informative intention manipulatively reconstructed by the translator to cater to the aesthetic expectations and acceptability level of the audience.

因而，译者的译文选择和语用翻译策略必须聚焦于传达原文作者的意图，以及对原文作者信息意图进行操纵，而不会让译文读者付出不必要的推导努力来获得：1原文作者试图传达的语境效果；2译者为了迎合译文读者的审美期待和接受能力而对原文作者信息意图进行操纵性重构而传达的语境效果。

The quality problem of resistance reducing material and its misemploy may be existed. The resistivity of resistance reducing material, the rate of steel corrosion, The stability of resistance reducing material and available time are considered.

因此就降阻剂的选择、使用提出了应综合考虑降阻剂自身电阻率、对钢接地体的腐蚀率、对环境有无污染和降阻剂的稳定性和长效性等因素，通过技术经济分析有效长期稳定地发挥降阻剂的降阻效果，减少对接地装置的腐蚀。

Firstly, a series of organic molecules which use phthalimido group as electron acceptor, N as electron donor, COO~- as eletrofugal group were synthesized based on SET-promoted photocyclization processes. These compounds were irradiated by 500 W ultraviolet under nitrogen atmosphere in room temperature. After filtration of the photochemical character of these molecules, substrate S1 and S2 were selected as appropriate model reactants. Secondly, the monosubstituted derivatives at the 6-position ofβ-cyclodextrin were synthesized as chiral template of photocyclization.

首先，以单电子转移机理为指导，设计了一系列以邻苯二甲酰亚胺基为电子受体、N为电子给体、羧基为离去基团的光环合反应底物，这些化合物在氮气保护下以500瓦紫外光室温下进行光照反应，对这一系列的分子的反应情况进行了研究与筛选，最终选择底物S1和S2作为研究光环合反应中立体控制方法的模型底物；其次，又合成了一系列6-位单取代β-环糊精，以此作为光环合反应的手性模板。

As a kind of low-priced nonmetallic mineral, zeolite has good selective adsorption ability for NH4＋-N. Modifying can even increase this capacity. Clinoptilolite and mordenite have much applying prospect in this aspect. The research on NH4＋-N removal with natural zeolite is sufficient in many countries.

沸石是一种廉价的非金属矿物，对氨氮具有较高的选择吸附性，通过改性处理能大大提高其对氨氮的去除能力，特别是斜发沸石和丝光沸石在这方面有很好的应用前景。

Analyzing the primary characteristic and the power performance, this article discusses the changing regularities of the ratio in two types of HTC, which have different penetrativity.

分析对比液力变矩器原始特性和动力特性，讨论了当外界阻力发生变化时，具有不同透穿性的液力变矩器速比的变化规律及其对变速器传动效率的影响，指出在自动变速器设计中，合理选择液力变矩器的结构参数，特别是注重其透穿度与发动机适应系数的合理匹配，是提高自动变速器传动效率及汽车驱动功率的有效途

Fuzzy Logic Ratio Control of Continuously Variable Transmission System;2. analyzing the primary characteristic and the power performance, this article discusses the changing regularities of the ratio in two types of HTC, which have different penetrativity.

分析对比液力变矩器原始特性和动力特性，讨论了当外界阻力发生变化时，具有不同透穿性的液力变矩器速比的变化规律及其对变速器传动效率的影响，指出在自动变速器设计中，合理选择液力变矩器的结构参数，特别是注重其透穿度与发动机适应系数的合理匹配，是提高自动变速器传动效率及汽车驱动功率的有效途

Objective To study the change of cardiac functions in hypertensive patients complicated with obˉstructive sleep apnea syndromeand those without OSAS.Methods To observe30hypertensive patients comˉplicated with OSAS and28hypertensive patients without OSAS.24h dynamic blood pressure monitoring,left ventricular function by echocardiography and polysomnography were measured.The left ventricular function was compared between two groups.

目的 通过超声心动图检查高血压并阻塞性睡眠呼吸暂停综合征患者的左心室功能，并与单纯高血压患者的左心功能比较，以探讨高血压并OSAS患者的心功能的改变方法选择30例高血压合并OSAS患者和28例单纯高血压患者，全部病人完成动态血压、心脏B超及睡眠呼吸监测等检查，并进行两组资料对比分析。

This paper presents the design of control and mathematical modeling and computing of a semi-physical simulation system of electric podded propulsion, which is been developing in Shanghai Maritime University.

介绍了上海海事大学正在研发的半实物吊舱式电力推进仿真系统控制方案和仿真算法的设计。半实物仿真系统整合了物理硬件设备和仿真软件，对改善非线性系统在大工况变动下实时仿真的快速性和精确性，以及在控制方案设计、船桨数学模型的建立和仿真算法的选择等方面都有其特殊的作用

The first, selecting Mannitol of polyhydric and Dextran ofpolysaccharide as subsidiary material, In accordance with differentusing quantities, making up eight recipes, freeze-drying test is madewith eight recipes differently. By adjusting recipe, to select themethod of two factors three levels. The best recipe determined is thatof Mannitol(160mg/bottle) and Dextran(40mg/bottle), Solving theproblem of description、moisture(≤1.5%)、solution(≤6s)、stability(95.0～110.0%) etc., The quality of preparation has beenimproved.

首先，选择赋形剂多元醇类的甘露醇和多糖类的右旋糖酐作为辅料，按照不同的用量，组合成8种处方进行冷冻干燥试生产，采用二因素三水平的满因子分析法，通过处方调整，确定甘露醇160mg／瓶、右旋糖酐40mg／瓶为最佳处方，解决了冻干制剂在性状、水分(≤1.5％)、溶解性(≤6s)和含量稳定性(95.0～110.0％)等方面的不足，提高了产品质量。

Results (1) From more than 100 primers, 11 primers producing polymorphism and reproduceable bands were selected, 129 bands were amplified.(2) The percentage of polymorphic bands within different populations were 20.9%-55.0%.(3) The cluster map including all samples were obtained by UPGMA. In the map, there were six cluster groups and three individuals outside the groups. The branch with five samples of Zhongjiang Sichuan population were far from other samples in genetic distance.(4) According to the distribution provinces five groups were divided in genetic variance analysis. Genetic variance 80.44% existing within population, 8.29% among populations and 11.27% among groups.

结果 （1）从100多个引物中选择出11个多态性强和重复性好的引物，扩增得到129条带；（2）不同居群内多态位点比率为20.9%－55.0%；（3）用UPGMA法得到所有样本的聚类图，可分为6个主要分支组和3个组外个体，其中四川中江居群的5个样本聚为一组，并与其他样本遗传距离较大；（4）按产地分组，遗传差异的80.44%存在于居群内，8.29%来自于组内居群间，11.27%的遗传差异来自于组间。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐