查询词典 low-level

The results showed that appropriate low temperature could effectively reduce the increase of respiration, and prolong the storage life of chayote fruits, but if the temperature was too low, the cold injury could be occurred; there was a certain relativity between SOD activity, CAT activity and membrane leakage, MDA content, O2(superscript -).

结果表明，适当低温处理可以降低佛手瓜呼吸强度的快速升高，延长其贮藏期，温度过低则产生冷害，腐烂率增大；SOD和CAT活性与细胞膜透性、MDA和O2含量表现出一定的相关性，而POD活性与佛手瓜成熟衰老相关性不明显。

The quality of black soil was best, but 7.97 percent of phaeozem had been changed into middle grade or low grade land.43 percent of chernozem belonged to middle and low product field, thus the black soil degenerated seriously. Since slightly sand soil kept better land quality, the soil might be exploited through intensification of sand regulation and farmland protection.

结果表明：研究区土地质量总体东部优于西部，黑土地质量最好，但已有7.97%的黑土已成为中等或差等土地，黑钙土有43%属于中低产田，黑土地退化严重；轻度沙化土地仍保持较好的土地质量，加强沙化治理与耕地保护，仍可发挥其生产潜力。

The low molacular hydrogenated bisphenol A epoxy resin was prepared by the ring-closing reaction of the chlorohydrin ether and alkali and high molecular hydrogenated bisphenol A epoxy resin was synthesis by the addition polymeration of the low one and hygenated bisphenol A.

氢化双酚A和环氧氯丙烷在催化剂作用下开环反应生成了氯醇醚，而后加碱进行闭环反应，制备了低分子质量氢化双酚A型环氧树脂，再将其进一步与氢化双酚A等进行加聚反应，得到高分子质量环氧树脂。

Surface water quality during this period of time is at low temperature, low turbidity and high chroma conditions.

结合我国当前低温低浊度高色度水处理中面临的技术问题，深入探讨低温低浊度水的处理机理和影响因素。

This study aimed at the problem of low content of protein in plant tissue, low solubility of some components in amphoteric electrolytes and the disturbance of secondary metabolites such as chromatophore, phenols and quinones to the separation of two-dimensional electrophoresis.

针对植物组织蛋白质含量较低，有些组分在两性电解质中的溶解性低以及绿色组织中的色素、酚类、醌类等次生代谢产物干扰蛋白质双向电泳分离效果的问题，以玉米苗期叶片为材料，对蛋白质裂解液、蛋白质浓度测定体系、等电聚集电泳电压和时间、聚丙烯酰胺凝胶浓度等技术参数做了改进。

This paper summarized the characters and acting principles as well as the application of low temperature plasma technology on the surface modification of protein biomaterials, and forecasted their applied prospects. Especially it make mention of improved absorption and combination of chrome in leather processing by low temperature plasma on the surface modification of collagen fibrils, that it may come into being a new technology of free-chrome.

概述了低温等离子体的特点和作用原理，并总结了低温等离子体技术在蛋白类生物材料表面改性中应用，展望了该技术的应用前景，特别指出了通过低温等离子体对皮胶原纤维的改性处理，有望提高铬的吸收与结合，甚至实现无铬鞣制新技术，这将对传统铬鞣工艺产生重要作用。

In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.

针对苏里格低渗气田开发中存在的实际问题，完成以下研究内容；研究了两区复合气藏物质平衡原理；利用美国岩芯公司高温高压流动实验仪，对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验，研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律；采用双岩芯夹持器串联实验装置，对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验，研究两区复合的低渗储层气井在低压生产阶段的生产动态特征；在实验研究的基础上，建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响，研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。

Three classes of equivalent system methods which are used in finding high order flight control systems low order equivalent are studied. The first class methods are the classical frequency domain-based equivalent system methods which recommended by MIL-F-8785C and MIL-STD-1797A. Five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given. Also conduct an investigation in the time domain-based equivalent system methods .

研究了求取高增稳飞机的低阶等效系统的几种方法：研究了经典的频域等效系统方法，针对纵向5种、横向14种构型的低阶等效系统进行了拟配实践，并提出一些有益的看法；以频域等效系统方法为基础，提出了时域等效系统新方法；以最小二乘辨识为基础，提出了两种纵向短周期低阶等效系统时域辨识方法(等效延迟时间τ_q参与或不参与)。

Gas hydrates are defined as the crystalline solid, or clathrate hydrates, which are formed by some types of low mass molecular gases, such as methane, carbon dioxide, and hydronitrogen et al, with water under relatively high pressure and low temperature conditions.

天然气水合物是一些具有相对较低分子质量的气体如甲烷，二氧化碳、氮气等在一定温度和压力条件下与水形成的内含笼形孔隙的冰状晶体。

If LE is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK.

如果LE是低，数据存储在一个闩锁/触发器对时钟低到高的转换失败。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。