上壳

It is typically pH-sensitive and ion-sensitive, andits sensitivity is closely related to the amido on the molecular chain of chitosan.

壳聚糖水凝胶具有典型的pH／离子敏感性，其敏感性与壳聚糖分子链上氨基有着密切关系。

Base on the foregoing studies on combustion performance, mechanic properties and heat-resistance performance of LOVA propellants, the energetic binders suitable for caseless bullet propellant charge and the coating procedures are obtained and the charge structural designs of caseless bullet propellants are conducted. Results of gun firing tests show the ballistic performances of caseless bullet propellant charge could meet with the prerequisites.

在燃烧性能、力学性能和耐热性能研究的基础上，选择了适用于无壳弹密实装药用含能粘结剂，确定了涂覆工艺条件，结合无壳弹装药结构设计，进行了弹道试验，试验结果基本接近或达到了设计目标。

Fagaceae is one of the most important families in temperate and subtropical regions,and especially in China.

壳斗科在我国有7 属350 多种和变种，是温带、亚热带最重要的森林树种，笔者用离差平方和法对壳斗科植物在中国的地理分布规律进行了研究，认为其落叶类型和常绿类型在空间分布格局上有很大差别。

The earliest and reliable Castanopsis fossil records date back at least to Eocene, and subfamily Castaneoideae fossil records found from Paleocene, it is indicated that appearance of Castanopsis is not later than Paleocene . All fossil records of Fagaceae and Castanopsis report from the Northern Hemisphere and their main distribution regions are in the Northern Hemisphere . It can be concluded that the Northern Hemisphere is the center of origin of Fagaceae and Castanopsis . However, owing to the discrepancy between fossil data and results of modern botany research as well as scarcity of fossil data from key area, precise center of origin of Castanopsis cannot be inferred.

栲属在地质历史上有着比现在广泛的分布，最早、最可靠的栲属化石记录发现于始新世地层，栗亚科化石在古新世就有发现，化石记录表明栲属起源的时间不晚于古新世，所有的壳斗科及栲属的化石都发现于北半球，现代分布也主要在北半球，壳斗科及栲属起源于北半球可以确认，由于化石证据与现代植物学的研究结果有较大差异以及关键地区化石证据的不足，具体的起源地尚不能肯定。

The binding capacities of the water-soluble chitosan and its derivatives to taurocholate and glycocholate as bile salts were investigated in vitro.

修饰后的壳聚糖结合胆酸盐的能力增强，说明引入更多的胺基或铵基有利于对胆酸盐的结合，胺基上烷基与胆酸盐的甾环之间也应当产生疏水相互作用；同样我们在体外也研究了水溶性壳聚糖及其衍生物对硬脂酸钠和十二烷基硫酸钠的结合能力及其影响因素。

These conditions included original material source, reagent ratio, base solutions, power of the microwave, reaction time and so on.2, Chitosan obtained from above was modified by Schiff base type macrocycles, which was prepared by the reaction of the reagents of salicylaldehyde, glacial acetic acid, hydrobromic acid, chloroepoxy propane and the others.

反应的最优化条件为：物料比1：25；反应时间20min；NaOH溶液浓度为50%；微波功率为450w。 2、利用原料水杨醛、氢溴酸、冰醋酸等采用四步法合成了含羟基的Schiff碱型大环化合物，然后以取代方法将此Schiff碱型大环化合物负载到壳聚糖上，得到具有特殊结构与性能的壳聚糖衍生物，并得到各中间产物的红外光谱图。

A composite rigid shell, with an aerodynamic profile, elongated longitudinally along the span of the blade, one longitudinal end of which is turnable towards a hub of the rotor and includes a blade root, said shell including at least one layer of reinforcing fibres agglomerated by a matrix comprising a synthetic rigidifying resin and laminated upper-surface and lower-surface skins extending from a leading edge to a trailing edge of the blade, each of said laminated skins comprising, from an inside towards an outside of the shell, a film of polyetherimide resin, at least one layer of plies of long and unidirectional fibres oriented substantially along a longitudinal axis of the blade, and at least one layer of fibre fabric, in which the directions of weft and warp yarns are oriented substantially at 45.degree.

复合刚性外壳，与气动的个人资料，拉长纵向沿跨度刀片，一纵年底，这是对回转中心的转子和包括叶根表示，蚬壳，其中至少1层加固纤维烧结由一个矩阵组成的一个综合rigidifying树脂和复合材料层合上表面和低表面皮肤延长，从领先到尾缘的刀片，每个说，叠层皮组成，从内对外界的壳，一个电影聚醚酰亚胺树脂，至少有一个层的层长和单向纤维导向的大幅沿长轴的叶片，并至少有一个层的纤维织物，在该方向的纬纱和经纱是面向大幅在45.degree 。

You can make the packer application that way fer sure -- and you might even be able to make the unpacker that way sometimes -- but you will really be much happier with C/C++/ASM for the stub part.

你可以用之来写壳程序--有时甚至可以写脱壳程序--但是如果在桩模块上使用C/C++/ASM或许你会更愉快。

Wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells.

象虫一样的海生双壳类动物，用其象钻一样的壳在木质的桥墩和船只上钻洞。

Hollow microspheres are one kind of new material in nano- or micro- size with core-shell special structure whose core is hollow while the shell is bestrewed with pores.

中空微球是粒径为纳米到微米级的一种具有核-壳特殊结构、核心中空而壳上布满孔道的新型材料。

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％。