查询词典 high molecular

Nature the whole temperatureses are high in the object of absolute zero(-273.15 ° Cs), because of molecular hot sport, all at without intermission to surroundings the space radiation include a red and outside wave band at inside of electromagnetic wave, the temperature relation between its radiation energy density and object matches the gram of Plank laws.

红外温度检测系统自然界一切温度高于绝对零度（-273.15°C）的物体，由于分子的热运动，都在不停地向周围空间辐射包括红外波段在内的电磁波，其辐射能量密度与物体本身的温度关系符合普朗克定律。

Zirconium containing MCM-41 molecular sieves with high surface area, good crystallinity and Si / Zr ratio from 20 -∞ were synthesized in a near neutral condition by using a sodium silicate as silicon source and a zirconyl nitrite as zirconium source.

MCM - 41与传统分子筛比较，最突出的特点是具有 1～ 5nm直径的孔道和 1 0 0 0m2 ·g- 1 左右的比表面，如此宽孔道尺寸的固体材料对于大分子的吸附和催化具有潜在的应用前景[1 - 3] 。

It can grow all right in high salt Since twenty century , molecular biology and bio-technology have a large development , agriculture and physic have been speedily development too ,especially after the plan of human genome was successfully implemented ,more people engaged in bio-technology industry .but the area of the bio-technology study was very extensive , Ocean Rhodotorulas have been studied by people at beginning, on the end of 1980s , Ocean Rhodotorulas separation from sea and Japan was the first succeed in cultivation by zymolysis , the Ocean Rhodotorula of cultivation was used for a good nutrimental to feed for fish and shrimp.

二十世纪以来，分子生物学与生物技术得到了迅猛发展，在农业和医药业都得到了飞速发展，尤其是人类基因组计划的成功实施，使人们更多的从事着生物技术行业，但是生物技术研究的范围很广，所以对于海洋红酵母的研究还处于刚刚起步阶段，上世纪80年代日本最早分离到海洋红酵母，然后发酵培养，用做鱼虾的营养饲料。

Ongoing projects involve targeted gene disruption, high-throughput approaches for functional exploitation of Plasmodium and Anopheline genomes and identification of molecular components of the recombination machinery in malaria parasites.

正在进行的项目包括有针对性的基因破坏，高通量的方法开发功能疟原虫和按蚊基因组和分子识别元件的重组机制的疟疾寄生虫。

To establish the base of the control of the Citrus aurantium L. fruit maturity in molecular level and produce high quality Fructus Aurantii, a pair of degenergte primers were designed according to the conserve regions of ACC Oxidase gene of many kinds of plants.

根据已报道的各种植物ACC氧化酶氨基酸序列上前后两个保守区设计1对简并引物，以酸橙叶片总RNA为模板，通过RT-PCR扩增到1个834bp的基因片段。

In conclusion, the experimental method was easily performed, the reaction time was short and the products were gained in high yield. The bromination was controlled by the large molecular structure of ammonium methylbdate.

研究结果表明，实验方法操作简单易行，反应时间段短，产物专一性好，后处理简单，并且收率较高，活化溴原子对苯环的进攻位置主要受到催化剂钼酸大分子结构的控制。

In this study, we developed the ammonia sensing material by using MCM-41 impregnated with bromocresol green. MCM-41 is one kind of mesoporous molecular sieves. It can be applied to many fields due to well-defined pore shapes, narrow distribution of pore sizes, large pore volumes, high surface area, excellent thermal, hydrothermal, chemical and mechanical stability. And the bromocresol green dye is commonly used as a pH indicator with colorimetric from pH 3.8 to pH 5.4.

本研究之目的是结合变色染剂及中孔洞分子筛MCM-41进行氨气吸附，研究中所选择之变色染剂溴甲酚绿是一种偏酸性之大分子有机染剂，其变色范围在pH 3.8到pH 5.4；而MCM-41由於其孔洞大小分布范围狭窄、孔洞体积大、高比表面积、具有良好的吸附容积、表面反应性强及易於改质等优点，故期望利用此复合材料，经气体吸附达到氨的移除并同时在吸附饱和前能产生显色效果。

Cellulose acetate butyrate with high or low degree of butyryl substitution was synthesized in heterogeneous system(butyric acid/ acetic acid/ butyric anhydride/ sulfuric acid) using the "free solvent" method. The effect of activation time, esterification time, the molecular weight of cellulose and the content of the organic acid or anhydride on the degree of acetyl and butyryl substitution of cellulose was discussed.

在非均相体系中进行酯化反应，采用&反应性溶剂&，以硫酸作为催化剂合成出从高丁酯含量到低丁酯含量的纤维素醋酸丁酸酯，研究有机酸以及酸酐的添加量、活化时间、酯化反应时间以及原料纤维素的分子量对酯化产物纤维素醋酸丁酸酯的影响。

This high quality cDNA library can be further used for gene clone and ESTs analysis and provides a useful tool for the study of the molecular mechanisms of winter-blooming of Chimonanthus praecox.

LTP基因在蜡梅开花过程中可能具有重要的生物学功能，为探索蜡梅冬季开花分子机理提供了线索。

The molar ratio of sulfate ions to carboxylate ions is determined by conductometric titration method and the molecular weight is tested by high performance gel permeation chromatography. The precision of these two methods is also studied. To improve the detection sensitivity, guanidine hydrochloride is used as the best derivation reagent of 911. A systematic research is done on the optimum derivatization condition of 911 and Guanidine hydrochloride. The M /G ratio of 911 has direct relation to its biological activity.

论文首先对911的基本理化性质进行了系统的分析，以电导滴定法和高效凝胶渗透色谱法分别测定了分子中硫酸根羧酸根的比值和911的分子量，并探讨了两种分析方法的精密度。911分子没有紫外吸收，为提高检测灵敏度，本文采用荧光标记法，通过对三种荧光试剂与几种寡糖和多糖衍生效果的综合比较，最终确定了盐酸胍为最佳衍生试剂，并以911为代表详细探讨了衍生化反应的最优条件。911糖链结构与褐藻胶主链结构类似，以甘露糖醛酸和古罗糖醛酸的嵌段形式存在，分子中M/G比值与911的物理化学性质和生物活性有直接关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。