中壳

Environmental changes in the Swan Oxbow of the Yangtze River in China in the last 3 decades have been documented by morphological diversity, ecological characteristics and assemblages of testate amoebae, combined with pigment data.

通过对天鹅洲长江故道近代沉积物中有壳变形虫的形态、生态特征和多样性组合变化的研究，重建了该地区30a以来有壳变形虫的群落演替过程。

In some slices of hyoliths the tubular pores that were filled with phosphate granules in the process of the early phosphatization can be recognized. These tubular pores are densely distributed. They are approximately perpendicular to shell surface and almost reach to surface and bottom of the conch.

在一些软舌螺纵向和横向的切片中，均发现早期磷酸岩化作用中已被磷质颗粒充填的孔沟形态，这些孔沟分布相当密集，基本垂直壳面，几乎通达壳壁的顶底。

This paper deals mainly with the characteristics of the petrology, mineralogy, petrochemistry and geochemistry for the basic volcanics. The above result has indicated that these volcanic rocks are mainly a suite of eruptive pillow basic lava from the sea-floor, which have the characteristics of the continental and oceanic tholeiites and belong to the evolutionary products of the Liaohe rift from continental crust to oceanic crust.

重点討论了基性火山岩的岩石学、矿物学、岩石化学和地球化学特徵，结果表明，这些基性火山岩主要为一套海底喷发的基性枕状熔岩，具有大陆拉斑玄武岩和大洋拉斑玄武岩的双重特徵，是辽河裂穀由大陆壳向大洋壳演化过程中的產物。

For the accuracy and complexity of different complexity analysis method are different, firstly, the ultimate strength of pressure hull is mathematically analyzed and calculated by ANSYS, and then the empirical formulation is modified according to the modified factors, which are gotten by the accurate model of ANSYS. So that the calculation accuracy will be improved and the calculation time will be reduced after the analysis model of pressure hull structure is integrated.

不同分析方法的准确度和复杂度不同，本文采用ANSYS这种高精度分析方法对于载人球壳的极限强度进行计算，并根据所得到的计算结果来对采用经验公式方法得到的结果进行修正，使得多学科设计优化模型中集成修正后的载人球壳结构分析模型以提高计算结果的精确度和降低运算时间。

From thermal analysis, weight loss occurs pronouncedly at temperatures above 300 oC in air and the residual weight increases with the reaction temperature. The particle size decreases with the increasing ethanol concentration., while the BET surface area decreases when the concentration of water is increased. Pore size measured from the as-synthesized particles is about 2.7 - 4 nm and this becomes slightly smaller after calcination which is about 3 - 5 nm.

TG/DTA中温度上升至约300 oC时，重量开始明显失重，随著合成反应温度上升，最终残留量由1~3%提高为约5~7%，动态光散射粒径分析发现随著乙醇含量增加，煅烧前与煅烧后的粒径尺寸均有下降趋势，随著水含量的增加，比表面积值随著下降，煅烧后的壳层孔隙尺寸约为3~5nm，煅烧前的壳层孔隙尺寸为2.7~4 nm，煅烧后的孔隙度会略为上升。

A virus strain was isolated from the arthrosis of broiler chickens.The virus was shown to have spherical particles with isometric symmetry,no envelope,double deck capsids,with outer capsid of 75nm,inner one of 50nm in diameter by electron microscopy.The virus was not sensitive to aether,acid and heat.The virus could multiply on the chick embryo fibroblastcell,and could cause syncytial pathologic change with the appearance of cytoplasm inclusion bodies.The challenged chickens of one-day old by nasal,oral,intramuscular and pulvillus injection displayed obvious clinical symptom of severe arthritis and accompanied with pathological changes of malabsorption and necrosis.Meanwhile,four avian reovirus isolates CL,S1133,YH and YB were examined in the cross-neutralization test.

从临床患病鸡关节病料中分离到一株病毒，在电镜下观察到病毒粒子无囊膜，有双层衣壳，外衣壳直径约75nm，内核约50nm；分离病毒株对酸、热有较强的抵抗力，对乙醚不敏感；病毒感染鸡胚成纤维细胞上能产生以融合细胞为特征的CPE；爪垫接种1日龄雏鸡表现出明显的病毒性关节炎临床症状，并伴有吸收障碍型和坏死型的病理变化；血清中和交叉试验表明，该病毒分离株与国内的2株番鸭源呼肠孤病毒分离株和国外S1133呈不同程度的交叉反应。

In preface of chapter one, the research meaning of reticulated shells, bifurcation and chaos are introduced.

在第一章绪论中主要介绍了网壳、分岔、混沌研究的意义，然后介绍了网壳研究的国内外进展状况。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

Further research will be carried out in the future.5 Analysis of growth traits and molecular genetic bases of hybrids between two different populations of M. meretrix5.1 The growth traits in early period were analyzed on self-reproducing and hybridized stocks crossing with S and J populations of M.

研究结果表明，山东文蛤和广西文蛤应该同属于Meretrix meretrix，而白壳文蛤肯定不是Meretrix meretrix；那么白壳文蛤到底应该划归文蛤属中的丽文蛤M。

Wind up (i是发字母i本身的音,不是wind风那个音) If you wind up in a particular place, situation, or state, you are in it at the end of a series of actions, events, or experiences, even thought you did not originally intend to be.比如If he continues to spend money this way, he's going to wind up in bankruptcy. How did you ever wind up in this little town in the middle of nowhere?9. Someone is playing a shell game , Bruce. I'm just trying to find out who.

shell game原指一种大家都知道的游戏——藏豆赌博游戏：一种通常涉及赌博的游戏，一个人将一个小物体藏在三个坚果壳、杯子或茶杯中的一个里，然后当旁观者试图猜测物体的最终位置时，这个人在平坦表面上移动果壳、杯子或茶杯以变戏法也作thimblerig，后来可以泛指类似的骗局，不一定是藏豆子，本句里就在说Bruce搞的藏史高飞等人的游戏

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％。