壳的

Esp., most of the paddy rice, straw, rice leaves, rice husks, timber components, saw dust, reed and reed basketwork, rope and various plant stems and leaves, fruits etc. were in bright colors; among the paddy rice remains, the embossed veins and palea on the surface of some rice husks were also as clear-cut as original, so it was with a small amount of whole rice that connected the straw and ears of rice; there were some deposits mixed by rice husks, straws and rice leaves etc. crossed in several small layers under Layer 3, some looked like current objects, people would have such illusion that these were just fallen down on earth yesterday upon uncovering and could hardly believe that they were from thousands of years ago.

特别是，如稻谷、稻杆、稻叶、谷壳、木构件、木屑、芦苇及其编织物、绳子，以及各种植物茎叶、果实等等，多数色泽新鲜；水稻类遗存中，有的谷壳表面的隆脉和稃毛也清晰如初，还有稻杆与稻穗连在一起的少量整株水稻；第3层下数小层相间夹杂的谷壳、稻杆和稻叶等的混合堆积物，有的如同现时之物，刚揭开时真还会有一种昨天刚倒掉时的错觉，几乎无法相信它们是数千年前的物品。

Weak formulation of equilibrium equations including boundary conditions of laminated cylindrical shell are presented, and thermal stresses mixed state equation for axisymmetric problem of closed cantilever cylindrical shell is established.

导出层合柱壳轴对称问题的平衡方程和边界条件的弱形式，提供了方程和边界条件放在一起的算子形式，建立了悬臂柱壳轴对称问题的热应力混合方程，给出了正交异性层合悬臂柱壳在热荷载和机械荷载作用下的弱形式解·本文提出的方法弱化了求解方程和边界条件，化解了问题，具有一般性并便于推

The concept of topology optimization of truss structures with discrete variables including two kinds of variables and the relative difference quotient algorithm for discrete optimization are extended to the topology optimization of plate and shell structures composed by plate and shell elements.

将包含两类变量的桁架结构拓扑优化设计的概念及求解离散优化的相对差商法进一步推广到由板壳单元组成的板壳结构的拓扑优化，建立了包含两类变量的板壳结构拓扑优化设计模型，并采用相对差商算法进行求解。

First, the two convex hulls from the training set of approximate linear classification are similarly squeezed into the linearly separable ones, and based on the two similarly squeezed linearly separable convex hulls, an optimal separating hyperplane is figured out by using the method of halving the nearest points and the maximal margin method.

首先对近似线性分类中的训练集所形成的两类凸壳进行了相似压缩，使压缩后的凸壳线性可分；基于压缩后线性可分的凸壳，再用平分最近点和最大间隔法求出最优的分划超平面。

In this dissertation, the concept of plate-cone reticulated shell is put forward inductively and the development history of this kind of structures is reviewed.

本文归纳提出板锥网壳结构的概念并系统回顾了这类结构的发展历程；根据板锥网壳结构的构成特点，给出了这类结构的可能形式，并对其进行分类，探讨了板锥网壳结构的成形技术及选型原则。

METHODS: 15 g/L silk fibroin solution was made by degumming, salvation and dialysis. Chitosan was dissolved in 2% acetic acid solution to prepare 25 g/L chitosan-acetic acid solution. Two solutions were mixed to prepare six silk fibroin/chitosan solutions, and mass ratio was 10: 0, 5: 5, 4: 6, 3: 7, 2: 8, 0: 10. These solutions were separately sucked in a 24-well plate. Following exhausting gas vacuole at 4 ℃, precooling was performed at -20 ℃ for 12 hours, followed by cryodesiccate for 30 hours.

通过脱胶、溶解、透析这3个主要步骤制成质量浓度为15 g/L的丝素溶液，将壳聚糖溶解在2%的醋酸溶液中制成25 g/L的壳聚糖-乙酸溶液，然后将两者混合，配制成丝素/壳聚糖质量比分别为10∶0，5∶5，4∶6，3∶7，2∶8，0∶10的6种溶液，分别吸入24孔板中，4 ℃排出气泡后，-20 ℃预冷冻12 h，再冷冻干燥30 h。

Under the condition of different chitosan concentration, pH and temperatures, adopt the spectrophotography to measure adsorb after the concentration of the dye, got the best condition of adsorb of chitosan to dye, result is:The amount of devotion of the chitosan is within the scope of the red 3B are 2%, blue 2BG and yellow 3GE are 3%, pH8.4 at alkaline, the temperature is the best for 50℃.

在不同的壳聚糖浓度、 pH 和温度条件下，采用分光光度法测得吸附后染料的浓度，得到了壳聚糖对染料的最佳吸附条件，结果为：壳聚糖的投入量在红3B 为2%，兰2BG 和黄3GE 为3%时， pH8.4在碱性范围内，温度为50℃效果最佳。

The rear axle casing is stamping welded, its performance compareing favorably with the one made by traditional two poles press axle tube , which also can be adopted with different welding structure according to different user and more flexible .

后桥壳为冲压焊接式，性能优于传统的两端压半轴套管的铸造桥壳，并且可以根据不同用户要求采用相应的焊接结构，柔性化更高，可达到一壳多样的效果。

Basaltic underplating has deepened the CMB from 32 km to 42 km. The lower crust beneath Hannuoba consists mainly of two-pyroxene granulites, with minor felsic granulites, noritic granulites, spinel pyroxenites and spinel lherzolites.

该地温梯度线表明，华北克拉通北缘的岩石学壳幔边界很可能位于约42km处，与地震莫霍面近于一致。32-35km处的尖晶石二辉橄榄岩层可能反映了古岩石学壳幔边界的位置，玄武质底垫作用造成岩石学壳幔边界的深移。

The relationship between mantle fluid and U ore-forming was studied preliminarily,according to the results,the author considered theΣCO_2 of mineralizer and heat source came from mantle,which is because upwelling mantle forced by crustal extention and deep-seated faulting produced melt blending with lower crust,during this process,mantle provided the heat and releaseΣCO_2 to crust through outgassing.U mainly came from mantle-curst fluid formed by mantle-curst melt blending and the wall rock during fluid uplift.H_2O mainly generated from mantle fluid and the wall rock during mantle fluid uplift,and partly from atmospheric water in the late period of ore-forming.

初步探讨了地幔流体与铀成矿作用的关系，认为矿化剂∑CO_2和热源来源于地幔，是地壳拉张和深大断裂活动导致部分熔融地幔上涌，与下地壳产生壳幔混熔作用，在混熔过程中提供热量和向地壳&去气&释放∑CO_2；U主要来源于壳幔混熔形成的壳幔混合流体和流体上升途经的围岩；H_2O主要来源于地幔流体、地幔流体上升途经的围岩，在成矿晚期有部分来源于大气降水。

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。