查询词典 tortoise-shell spot

The experiments show that one portion of amino organic compounds in the shell is changed to the volatilizable amine and the other portion is transformed to the involatile nitrate after pyrogenation.The organic compounds disappear completely at 600℃.They also show that the aragonite phase of calcium carbonate in pearl shell chang with temperature;the aragonite phase transforms to calcite at 500℃, but some of organic compounds is still residual;and calcium carbonate begins to decompose to calcium oxide at 600℃.

实验发现，贝壳中的氨基酸类有机物热降解后部分以胺的形式挥发出来，另一部分则转化为不可挥发的硝酸盐的形式，600℃有机物完全消失；同时，贝壳碳酸钙的文石晶相随温度而变化，500℃时转变为方解石结构，其中仍有部分有机物残留，600℃开始分解为氧化钙。

The technology and items which are needed to be paid attention to,during the procedure of manufacturing of the laminose shell s with large diameter,from material preparing to the machining of the bevel on the edge of the shell ,are introduced herein.

主要介绍了薄壁大直径短筒体从下料到坡口加工的完整的制造工序及注意事项。

The silicon-acrylic latices with core-shell structures were prepared by means of a"two-stage"emulsion copolymerization. The effect of constituents and proportion of core and shell parts on the properties of latex film were investigated, and their applications in water-borne wood coatings and elastic coatings were explored. The results indicate that wood coating and elastic silicon-acrylic coatings with good performance and zero VOC content can be prepared by suitable design of structure of silicon-acrylic latex particles.

通过&两段&乳液聚合的方法合成了具有芯／壳结构的硅丙乳液，研究了芯／壳乳液粒子结构及组成比例对聚合物漆膜性能的影响，并探讨了芯／壳乳液在水性木器涂料及弹性涂料中的应用，结果表明，通过对硅丙乳液粒子的结构设计，可以获得性能优良的零VOC含量的木器涂料和弹性硅丙涂料。

The geometry of these particles was analyzed by both particle size analysis , TEM and FT-IR , and was found to be perfecty spherical , and sized about 50 nm that PS core was well covered by PPy shell . The core-shell latices become unstable when the amount of PPy increased .

就PS-PPy颗粒的结构形态而言，由微粒径分析及TEM分析得知其粒径约50nm左右，制备的核壳颗粒呈均匀的圆球状，并由FT-IR光谱分析证实了PPy壳将PS内核完全包覆，只是当PPy壳的相对量增加时会对核壳乳液的稳定性造成负面影响。

It has the following characteristics: 2D drawings can be maintained with a high degree of consistency of 3D model; CAD /CAPP /CAM are integrated by the generation of comp lete manufacturing information and the integrated digital p roduction line of shell, outfitting and painting is imp lemented basically; the generation of comp lete manufacturing and management information of shell, outfitting and painting lays the foundation for the integration of design, manufacturing and management; the entity and parametrized technology is used to ensure the establishment of ship p roductmodelwith comp lete topology relations; and the data interfaces for the heterogeneous CAD data and information integration ensure the collaborative design for the factories and the institutes.

SPD系统具有如下特点：能保持三维模型与二维图纸的高度一致；通过生成完整的加工制造信息实现CAD/CAPP/CAM集成，基本打通&壳、舾、涂一体化&的数字化生产线；通过生成壳、舾、涂完整的制造和管理信息，为实现船舶&设计、制造、管理一体化&奠定基础；通过实体和参数化技术为建立具有完整拓扑关系的船舶产品模型提供有力手段；并通过与其他系统的数据接口实现异构CAD的数据和信息集成，为厂、所协同设计创造技术条件等。

Additionally, heterosis from cross breeding was analyzed and discussed. The major results and conclusions are presented as follows:1 Variances of shell shape and phenotypic traits among different stocks or populations of Meretrix clam1.1 The shell shapes of seven natural stocks(L、S、J、Z、F、G、W)and one cultured stocksshowed certain differences as well as similarities.

主要结果和结论如下：1文蛤不同群体的形态和性状的变异规律1.1文蛤不同群体的形态变异特征利用多变量形态度量学方法，对文蛤的辽宁、山东、江苏、浙江、福建、广西、白壳等7个自然群体和1个浙江养殖群体的形态变异进行研究。

Gentle and soft shell shell, the daring is clear and bright, passionate joys joys, very naughtily face, natural and unrestrained Ni Ni!

温柔的贝贝，胆大的晶晶，热情的欢欢，调皮的迎迎，潇洒的妮妮！

From the above observations, it was deduced fragmentation process of the shell, and concluded that fragmentation of the explosive shell with bottom concave will made as soon as it breaks away from gun muzzle resulted from overburn of material at the bottom co.

根据上述结果，推测了这发弹的破碎过程，并得出结论，这发底凹榴弹出炮口即发生破碎是由于底凹部材料过烧引起的。

Based on the higher order refined shell theory of Reddy type, the assumption that transverse shear deformations vary parabolically in the thickness direction and vanish both in the bottom and top surfaces of the shell is applied and coefficients of higher order terms in the formulation can be determined.

在Reddy型高阶壳体理论的基础上，假设横向剪切变形沿壳体厚度呈抛物线分布并在壳体的上下表面上为零，进行高阶量系数的求解。

This Venus' conch shell is hard and white, and perhaps the Italians named the Chinese ware porcellana because they thought the shell was ground up and used in the body, or because of the similarity in hardness and whiteness.

这金星海螺外壳很难和白色，也许意大利命名为中国陶瓷porcellana ，因为他们认为壳是地面和使用的机构，或因相似的硬度和白度。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。