查询词典 osculating sphere

Specialized in manufacturing GB screws, pan head screws, lock tool screws, furniture screw, hex socket screws, nuts, carriage bolts, special bolts, pins, plain head hex socket screws, rivets, sphere screws, truss head screws, set screws, various bolts and non-standard screws.

专业生产各类国标螺丝；盘头螺丝；锁具配套螺丝；家具配套螺丝；内六角螺丝；螺母；马车螺栓；异形件螺栓；销；平头内六角螺丝；对扣螺丝；铆钉；球面螺丝；大扁头螺丝；各种非标；各种螺栓；紧定螺丝

However, one day I touched a silicon sphere to the copper circuit, and a bolt of energy grounded me into the earth and went up my spine and took away my headache.

然而，有一天，我感动硅领域的铜电路，以及一个螺栓的能源停飞我到地球，走到我的脊椎，并且拿走了我的头痛。

In this study,additives were used to con-trol the size and shape of CaCO3.Needle,sphere,short chain and hexangular plate likenanometer CaCO3were synthesized by introducing CO2to lime suspension under opti-mum condition.

采用鼓泡碳化法，在最佳反应温度、反应物浓度、气体流量的条件下，考察了不同添加剂对产物形状及粒径大小的影响，得到了粒径小于100 nm且分散性能良好的球状、针状、短链状及六角板状纳米碳酸钙。

Third, we should deepen the reform of the social sphere, to promote science, education, culture, and health system reform, and effectively address the economic and social development "of a leg, short leg" issue.

三是要深化社会领域的改革，推进科学、教育、文化、卫生等体制改革，切实解决经济社会发展&一条腿长、一条腿短&的问题。

Microspheres after foam shell will not break down, is still sealed to maintain a complete sphere.

发泡后的微球外壳并不会破裂，仍保持一个完整的密封球体。

All legal checks must be directed away from a seven-inch sphere or ""bubble"" around the head of the player.

正当的击杆动作要在以球员头部为圆心，七英尺为半径的圆外尽心。

This is the VC environment in the preparation of a small sphere segmentation procedures.

详细说明：这是在VC的环境下编写的一个对球体进行分割的小程序。

In this study ,We have prepared ZrO_2 nanopowder by microemulsion technology. On the basis of this, nano-sized ZrO_2 is assembled on PS sphere and ordered structure of ZrO_2 in micrometer scale is deposited on glass base.

本文首先在微乳液体系中制备了纳米ZrO_2，以此为基础进行了纳米ZrO_2在PS球表面的组装和微米尺寸ZrO_2有序结构的自组装。

In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..

在混凝土结构的施工及使用过程中，由于受其自身及外界各种因素的影响，常常会产生一些缺陷，对结构物的承载能力和耐久性造成严重影响，采用无损检测技术进行质量检测和健康诊断，这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作，重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围，运用动力有限元数值模拟其检测过程，探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征，研究了不同裂缝深度下首波相位变化规律，得出了反转临界点与裂缝深度之间的关系，这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术，它是利用声波穿透被检测体获取声波接收时间，来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序，能较好地呈现被检测物体各微小单元的声波速度分布图像，从而对检测体的质量状况作出诊断评估，具有较好的应用发展前景。

At one point we thought of protecting the sphere with a spherical mobile sun screen.

我们曾一度设想用一种球行活动遮阳板来保护球体。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？