查询词典 low-temperature

This paper deals with different ways to depolymerize the chitosan into water soluble low molecular weight polymer.Molecular weight of water soluble low molecular weight chitosan was determinated by GFC.

探讨并比较了壳聚糖解聚成水溶性低聚物的不同途径，用GFC方法测定了水溶性低聚物的相对分子质量，证实选用NaNO2作解聚剂解聚效果良好。

When transaction efficiency is low, thescope and depth of humen interaction is low too, and political, economicand cultural relations is not compact with a local geographical extentlimited in each continent. Along with the advance of transactionefficiency, mankind cooperative relations depthen and go into an eraof globalization and world economic integration.

人类发展过程是人与人之间关系在广度与深度上不断扩展的过程，交易效率比较低时，人与人交往的深度与广度都较低，政治、经济、文化联系不紧密，地理范围上只局限于各大洲与地区；随着交往效率的提高，人类的分工合作关系加深，逐渐进入到全球化时代并迈向世界经济一体化。

The populations of Deschampsia antarctica showed low genetic diversity,and low level of gene flow occurred between neighboring populations.

南极植物群体的遗传多样性低，基因流动主要发生在邻近群体之间，其拓殖方式符合步石模型。

Results 12 cases as abdominal hernia (of which indirect hernia 9 cases, direct hernia 2 cases, femorocele 1 case), ultrasonography shows middle-high echo or linkage heterogeniety echo clumps; 8 cases as hydrocele, Ultrasonogram shows anechoic; 2 cases as cryptorchidism, ultrasonography shows normal testicular middle-echo; 4 cases as lymph node mass (of which lymphoma 2 cases, lymph node metastasis 1 case, lymph node inflammatory change 1 case), acoustic image shows low weak echo; 4 cases as substance mass (of which fibroma 1 case, spermatic cord tumor 1 case, Desmoid tumor 1 case, spermatic cord inflammation 1 case), Ultrasonography shows non-uniformity middle-highor low echo.

结果 12例为腹外疝（其中斜疝9例、直疝2例、股疝1例），声像图表现为中高回声或混杂性回声团块；8例为鞘膜积液，声像图表现为无回声；2例为隐睾，声像图表现为似正常睾丸样中等回声；4例为淋巴结包块（其中淋巴瘤2例、淋巴结转移1例、淋巴结炎性改变1例），声像图表现为低弱回声；4例为实质性包块（其中纤维瘤1例、精索肿瘤1例、韧带样瘤1例、精索炎症1例），声像图表现为非均匀性中高回声或低回声。

In low basicity, because of the low melting of the slag phase, it is bad for the gas-solid reaction of ferric iron oxide and separating iron from slag The research discovered: Sulfur can be deprived above 90% during direct reduction. The mechanic of desulphurization is gasification desulphur.

研究发现，在直接还原过程中可以脱除90%以上的硫，脱硫主要机理是气化脱硫，内配煤团块中的硫化物和有机硫进入气相，一部分随炉气脱离团块，一部分被配入的CaO吸收。

The main components for ISR including low molecular weight polysaccharide, glycoprotei^ low molecular weight polypeptide are diffusible.

作为激发子的水杨酸和生物因子都是近年来的研究热点。

In chapter Ⅰ, a historial review of structure control is given; In chapter Ⅱ, A discussion of the controllability and observablity of flexible structures is given, Two kinds of controllability and observablity index are defined, and applied to actuator allocation; chapter Ⅲ considers the reduction of high order flexible structure mode; the content of chapter Ⅳ is about the basic problem of distributed parameter control system design. It is proved that a stable controllor in mode space may be unstable in real use in distributed paramater systems, also, by closed loop mode concept, a pole assignment method of flexible structure controllor design is given; chapter Ⅴ is about the low-authority controllor design, it is pointed out by use of high order eigenvalue/eigenvector perturbation, a better controllor can be designed; chapter Ⅳ considers flexible structure reduced order control; chapter Ⅶ disscusses the basic problem of flexible structure computer control, analyses discreate controllablity and observablity and its computing, the sample period and coefficient wordlength; chapter Ⅷ is on the problem of low flexibility compensation; chapter Ⅸ is a design example.

在第一章简要回顾了挠性结构控制的历史，并且指出控制中的一些问题；第二章讨论了挠性结构的能控性与能观性，定义了两类能控性程度和能观性程度指标，还将能控性程度概念应用于执行器位置的确定；第三章论述了高阶模型的降价问题，比较了适于挠性结构模型降阶的方法，指出其适用范围；第四章内容是分布参数系统设计的基本问题，首先证明在模态空间中设计的稳定的控制器在实际分布系统上可能是不稳定的，进而根据闭环模态的概念，获得挠性结构控制器设计的极点配置方法；第五章的内容是关于低权控制器的设计问题，指出利用特征值高价摄动和特征向量的摄动，可以设计出更加完善的低权控制器；第六章讨论挠性结构降阶控制问题；第七章讨论挠性结构计算机控制的基本问题，分析了时间离散化模型的能控性和能观性及其计算问题，讨论了采样周期选择和系数字长问题；第八章讨论低挠性结构的补偿问题；第九章的设计例子用来说明第二章和第四章的结果。

These questions were caused by many factors, such as, low rural economic development level, low cultural level of the villagers as a whole, the distemperedness of electoral system and so on .

这些问题是由农村经济发展水平低，村民的整体文化水平不高，选举制度的不健全等因素造成的。

Many achievements cant change into practical productivity. There are many reasons for the low translation rate, include the distemperedness of extensive system, the low ability of users ,and the applicability of the results.

导致农业科技成果转化率不高的原因很复杂，既有推广应用体系不健全的问题，也有成果应用主体的科技意识和接受能力差的问题，还与成果本身适用性密切相关。

The four major reasons can be concluded as following, the first is the lack of individual credit system; the second is the low reputation of individual credit; the third reason is the huge enterprise operation risk caused by distemperedness of market rules; and the fourth one is the low anti-risk ability of Chinese commercial bank.

本文的主旨是，在对消费信贷所面临的风险进行深入研究和探讨的基础上，找出控制消费信贷风险的措施，保证消费信贷健康、有序的发展。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。