查询词典 snail shell

Decreased expression of MMPs by blocking the expression of Snail in ovarian carcinoma cells Objective: To investigate the influence of antiadhesive antibody (SHE78-7), targeted at the potent hemophilic cell adhesion molecule E-cadherin, on the motility and invasive ability of ovarian carcinoma cells that have stably tansfectant with anti-Snail plasmid.

第二部分反义Snail对裸鼠卵巢癌原位移植瘤转移的影响目的：观察转染反义Snail质粒的卵巢癌细胞在裸鼠原位移植瘤模型中生长及转移的情况，检测转移组织中Snail、E-钙粘蛋白、及基质金属蛋白酶的表达和分布。

The dog whelk, dogwhelk, or Atlantic dogwinkle, Nucella lapillus, is a species of predatory sea snail ; a carnivorous marine rocky shore gastropod mollusc in the family Muricidae, the rock snail s.

Jean：所谓的&蜗牛邮件&是形容一般邮寄的信件的速度非常之慢，像蜗牛一样慢吞吞的。而在英语当中，&蜗牛&这个词 snail 和邮件mail是押韵的，所以说起来也很顺口 snail mail。

Snail species complex world, there are about as many as tens of thousands of kinds of size, the largest in Africa, when the number of agate snail displays run up to 30 centimeters or so.

全世界的蜗牛种类繁杂，大概有几万种之多，体积最大的当数非洲的玛瑙蜗牛，通体可达三十厘米左右。

Those results implied that the field investigation should be started from bund toward middle of field for snail population and weed plants for eggs, and the population of golden apple snail could be managed effectively by adjusting the level of irrigation water.

从埂边向稻田中部调查螺量或从田埂杂草向稻田中部稻株调查卵量，更能代表水稻田福寿螺螺卵量的实际情况；通过调节稻田水位可以控制福寿螺的发生和危害。

Course north has lock of new city of door of Hanjiang chaste tree, via the join river channel of new excavate, into Xi Jing river, Yan Jiahe, twin store canal, rash inn lock enters long lake, lock of members of a family passing custom arrives inside Jing He, by Huan Zi buccal lock enters snail hill trunk canal, from Hong Hu snail hill lock exports the Yangtse River south.

航线北起汉江荆门新城船闸，经新开挖的连接河航道，进西荆河、殷家河、双店渠、鲁店船闸入长湖，过习家口船闸到内荆河，由宦子口船闸进螺山干渠，南从洪湖螺山船闸出口到长江。

If so, you can purchase De Jaeger snail caviar:"A taste sensation that evokes a sense of walking in the forest after the rain, with hints of mushroom and moss", says Dominique Pierru, owner of the snail farm in France.

如果是这样，你可以购买者积蜗牛鱼子酱：&一个味觉，唤醒了在森林中散步雨后感，蘑菇和苔藓提示&说，多米尼克皮埃吕，在法国的蜗牛农场主。

Taking the wild snail Su bag as the raw material to extract the snail enzyme product,and determining the activity of cellulose enzyme and starch enzyme .

以野生蜗牛嗉囊为原料提取蜗牛酶产品，检测所含纤维素酶、淀粉酶的活性，对其蜗牛酶产品进一步测试，结果表明新疆蜗牛酶中的纤维素酶活力为450U/g 淀粉酶为405U/g。

The affecting factors of ammonification on natural lignin materials, which include shell of sunflower seed, shell of walnut seed and shell of apricot seed, were studied.

研究了天然木质素瓜子壳、核桃壳、杏核壳三种原料化学加氨的影响因素。

Research on techniques for the synthesis of ACR impact modifier with core-shell structure;2. Preparation of polymer-tungsten-silica composite microspheres with multi-layer core-shell structures;3. Organosilicon-acrylate micro emulsion with core-shell structure was synthesized with OP-10,JFC and amyl alcohol nonionic compounded emulsifier by means of seeded emulsion polymerization.

运用种子乳液聚合工艺以OP-10/JFC/戊醇非离子复合乳化剂合成了具有核-壳结构的有机硅-丙烯酸酯微乳液，研究了复合乳化剂类型、丙烯酸酯单体、有机硅单体加入方式和含量、pH值、硫醇对微乳液聚合过程中稳定性和光泽度的影响，通过差示扫描量热仪和透射电镜对微乳液的结构进行了表征。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。