脫殼作用 的英文怎麼說
中文拼音 [tuōkézuòyòng]
脫殼作用
英文
decorication-
In this paper, advances in the application and research of chitin deacetylase in preparation of chitosan are summarized
本文就甲殼素脫乙酰酶在殼聚糖制備中的應用及研究進展作一綜述。Due to aac ' s unique cell structure and absorbing water propriety, however, there are still many problems, when we adopt ordinary mortar to construct and plasterer ash, such as wall crack, big area of layer of plasterer ash crack and partially hollow drum, even according to present aac technical specifications, for the actual operation craft is so complicated that it is very to guarantee each preface quality
然而，由於加氣混凝土本身特有的多孔結構和吸水特性，採用普通砂漿砌築與抹灰，即使按現行加氣混凝土砌塊施工規定的方法施工，由於實際操作工藝復雜，各工序質量難以保證，依然有墻體開裂，抹灰層大面積龜裂和局部起鼓、空殼、脫落等現象。Chitin is a natural polymer that has rich resources, its research and development have been paid much attention to in the world, the dea cetylation product of which - chitosan is widely used for its distinctive physico chemical and biological characteristics
作為一種資源極其豐富的天然高分子化合物，甲殼素的研究與開發受到各國的普遍重視，其經脫乙酰化的產物- -殼聚糖因具獨特的物化及生物學特性而被廣泛應用。Above 450, the formation of low density u ( al, si ) 3 phase, together with the release of the impurity gas and fragmentation of u3si2 particles, will cause fuel meat to swell, al matrix to crack and u3si2 particles to invade to clad. as a result, the thickness of the meat increased, the thickness of clad decreased and the deformation of fuel plates increased, and the leakage probability of the radioactive mass increased reasonably
同時，由於芯體膨脹及鈾硅顆粒碎裂的綜合作用，使u _ 3si _ 2顆粒向包殼侵入，最終使燃料板芯體厚度增加較大，芯體及燃料的體積也顯著增加，包殼厚度減薄；高溫將加速芯體u _ 3si _ 2顆粒碎裂、芯體開裂、包殼以及燃料板變形，從而使燃料芯體與包殼脫開，最終可能導致放射性物質泄漏。分享友人