查询词典 modification

Structure Design and Modification of Mannitol-polylactide Tissue Engineering Materials;2. Based on the molecular structures, sugar alcohols can be classified into Mono sugar alcohol (such as erythritol, xylitol, sorbitol and mannitol ) and Disaccharide alcohol (such as maltitol,lactitol and isomaltitol).

糖醇是醛糖或酮糖的羰基经氢化还原成羟基的多元醇；按其结构可分为单糖醇(如四元赤藓糖醇、五元木糖醇、六元山梨糖醇和甘露糖醇)，双糖醇(如麦芽糖醇、乳糖醇、异麦芽酮糖醇)。

The result of surface modification of the polystyrene is characterized by using ESCA .

表面处理提高了塑料表面对金属镀层的附着力。

The surface structure and component change are analyzed by SEM, ESCA and contact angle instruments to investigate the modification on polymer surface.

配合SEM、ESCA、接触角等仪器的分析、观测高分子表面构造的变化及成分的变异，以研究高分子表面的改质。

In recent progress in chemical modification of hemicelluloses has been reviewed in this article,including esterification and etherification.

对近十年半纤维素的化学改性如：醚化改性、酯化改性进行了综述，主要从多相反应和均相反应两个方面进行了归纳说明，最后提出了半纤维素改性的前景。

Effects of dealumination and metal modification of mordenite catalyst on synthesis of ethylenediamine were studied.

研究了丝光沸石脱铝及金属改性等对合成乙二胺反应性能的影响，通过X荧光和XRD等手段对所得催化剂进行了表征。

These researches supplied the basis for the further work of Structure-activity relationships and Structural modification of eugenol's derivatives.

这些研究结果，为进一步研究丁香酚类化合物的构效关系和结构改造提供了依据。

The military has had about twenty years to work on weather warfare methods, which it euphemistically calls weather modification.

军方已经有了大约20年的时间就被婉转地称为"天气改良"的天气战的法术进行工作。

After the modification with RE at temperature around 800 C, we have got granular and stubby eutectic silicon.

RE在800℃左右对含硅量为20％的铝硅合金进行变质处理，可获得颗粒状或短杆状的共晶硅。

The effect of Mg addition on the modification of Al—Si eutectic alloy by mischmetal was studied.

本文研究了Al—Si共晶合金中镁对稀土变质作用的影响。

Because of the evanescence of knowledge, it needs constantly modification and regenerate.

知识是短暂的，必须经过不断的修改和更新。

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％。