查询词典 oxidation

The article in recent years the research progress of disease of oral cavity of TP prevention and cure makes one overview. The compositive TP of the basic research 1.1 TP of 1 TP is the floorboard that phenolic apperception of a kind of many hydroxyl closes matter, 25% what hold tea dry weight about, its are main component includes to express gallnut of gallnut catechu element gallnut of element of catechu of gallnut of acerbity ester, watch, watch catechu element is acerbity element of catechu of ester, watch, express gallnut of gallnut catechu element among them acerbity ester content is highest, occupy the 80%[1] of catechu element about, fighting oxidation with its unique element structure, fight the position with fight the respect such as tumor to have choppy, significant. The 1.2 TP absorption in oral cavity and metabolization Lee [2] is measured normally inside a hour after healthy person is chewing green tea Xie Huo contains juice of gargle green tea, content of the TP in saliva is very high, after observing green tea passes salivary enzymatic hydrolyze, TP is slow release and in oral cavity;Yang of local play action [the salivary level after 3] checked 6 volunteers to drink tea, chroma of the TP in making clear the saliva after drinking tea as a result is serous TP pH indicator 2 times, and the salivary TP concentration that contains gargle tea solution a few minutes to be able to produce higher level, and TP can be absorbed through oral cavity mucous membrane.

本文就近年来TP防治口腔疾病的探究进展作一综述。1 TP的基础探究1.1 TP的组成TP是一类多羟基酚类化合物的总称，约占茶叶干重的25%，其主要成份包括表没食子儿茶素没食子酸酯、表没食子儿茶素、表儿茶素没食子酸酯、表儿茶素等，其中表没食子儿茶素没食子酸酯含量最高，约占儿茶素的80%[1]，并以其独特的分子结构在抗氧化、抗突变、抗肿瘤等方面占有重要的地位。1.2 TP在口腔中的吸收和代谢Lee等[2]测得正常健康人在咀嚼绿茶叶或含漱绿茶液后的一个小时内，唾液中TP含量很高，并观察到绿茶通过唾液酶水解后，TP缓慢释放并在口腔局部发挥功能；Yang等[3]检查了6位志愿者饮茶后的唾液水平，结果表明饮茶后唾液中TP浓度是血浆TP浓度的2倍，而含漱茶溶液几分钟即可产生更高水平的唾液TP浓度，且TP可通过口腔黏膜吸收。

This kind of product has good characters of causticity resistance, wear resistance and oxidation resistance under high temperature, good air sealing and long using life.

可用于冶金、化工、医药、食品、耐蚀、汽车、机械等行业的密封装置和滑动装置，该产品具有耐蚀、耐磨、抗高温氧化等性能特点，气密性好、寿命长。

Characteristics of material surfaces are correlative with friction, abrasion, oxidation cauterization, wetting and adhesion etc.

而利用电力电子技术实现高性能DBD是电力电子技术的新方向。

The oxidation resistance of the ceramal composite coating was investigated und.

在900℃恒温氧化50h的试验条件下测试了涂层的抗氧化性。

Finding and Making deep investigation into the oxidation of MgF〓 composition in the cermet films after annealing.

发现了Ag-MgF〓复合金属陶瓷薄膜在退火过程中MgF〓组分的氧化现象。

In the wet air oxidation, heat and light cesium enough to melt.

在潮湿空气中，氧化的热量足以使铯熔化并点燃。

The effects of reaction factors of oxidation, grafting copolymerization and chelation on the corrosion and scale inhibition performance of modified product were studied.

实验研究了影响氧化反应、丙烯酸接枝共聚反应和螯合反应的各因素对木素磺酸钠改性产物缓蚀阻垢性能的作用规律。

Results: The chemiluminescence of this system was produced by the oxidation of potassium permanganate to dopamine.

结果：在硫酸环境中，高锰酸钾可以氧化多巴胺产生化学发光。

The anti oxidation and preservative effects of tea catechins added to feed of chicken were investigated in this study.

通过在肉鸡饲料中添加一定量的儿茶素，来研究体内儿茶素对鸡肉的抗氧化保鲜作用效果。

The method controls the catalytic speed of the microencapsulation glucose oxidase through adjusting the molecular weight and the degree of deacetylation of microcapsule exine chitose, thereby the method is beneficial for oxidation-linking of gluten protein and for increasing the quality of the flour and flour products, simultaneously, the glucose oxidase after microencapsulation avoids the contact between enzyme and the flour and improves storage and the stability, and the microencapsulation glucose oxidase is excellent flour modifying agent and accords with practical production and application.

该方法通过调节微胶囊外壁壳聚糖的分子量和脱乙酰度，控制微胶囊内葡萄糖的催化速度，从而有利于面筋蛋白的氧化交联，提高面粉及其制品的品质；同时葡萄糖氧化酶经微胶囊化以后避免了酶与面粉的接触改善了贮藏和稳定性，是优良的面粉改良剂，符合实际生产应用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。