查询词典 concave line

The aromatic holding structure for dust collecting chamber inside vacuum dust collector includes concave holding notch in the bottom of the dust collecting chamber for holding antiseptic agent and aromatic, and top cover over the concave holding notch and with several ventilating holes for dispersing antiseptic agent and aromatic toward the dust collecting chamber.

本发明是关于一种真空吸尘器的芳香剂安装结构，特别是在收集本体中空气所包含的污物的集尘室内部安装芳香剂的结构。本发明的真空吸尘器(30)的芳香剂(40)安装结构，包括设置在尘袋(20)所在的集尘室(31)底部可放进抗菌剂及芳香剂的凹形安装槽(35)、安装在该凹形安装槽上部的可开闭的顶盖(37)，以及形成在凹形安装槽(35)和顶盖上可开闭安装槽上部的开闭构件。

In Chapter 3, existence of quasi-convex, quasi-concave, convex and concave solutions of a linear iterative functional equation are studied.

曾经有人讨论了凸迭代根和凹迭代根的存在性，但对更一般的方程——线性型迭代方程的解的凹凸性尚无结果。

Before version of the process flow is: that the original steel plate, that is, the original mould, Yin, maintop pattern concave, hardened-overvoltage round steel shaft, that is, cavity, positive and maintop pattern convexes-round steel shaft had hardened-Nano-imprint lithography version submodules, Yin, maintop pattern concave-skinpass printing layouts — chromeplate — students'computer proofing-business card printing and membership card.

功版的工艺功程是：邮票原钢版，即原模，晴图、版纹凹形，不退火强硬——功不抬圆钢轴，即母模，阳图、版纹凸形——圆钢轴不退火强硬——功不抬印版，即子模，晴图、版纹凹形——裂缝版面——印版镀铬——上机打样——制卡和会员卡制作。

The process flow is: that the original steel plate, that is, the original mould, Yin, maintop pattern concave, pressed plastic version —— welding by stamp layout: skinpass page make up layouts guniting silver, copperizing-nickel-coated, cavity (for positive and maintop pattern convexes)—— a printing plate nickel plating shall be guilty of submodules, concave maintop pattern--a printing plate chromeplating treasure…every two pieces by mechanical bent of the semisircle package 5.1 core-students'computer proofing-business card printing and membership card.

其工艺功程是：邮票原钢版，即原模，晴图、版纹凹形，冲不抬塑料版——按邮票版式割切拆版——裂缝版面——喷银、镀铜——镀镍(为母模，阳图、版纹凸形)——镀镍为印版，即子模，版纹凹形——印版镀铬——把两块印版用板滞弯不败半圆形包在滚筒芯上——上机打样——制卡和会员卡制作。

Lens, plano-convex lens, double-convex lens, plano-concave lens, double-concave lens, plus/minus Meniscus Lens.

球面镜：平凸透镜、双凸透镜、平凹透镜、双凹透镜、正/负弯月透镜、超半球透镜、金属球面镜、积分器及其他球面胶合镜等。

This article introduced the first human understanding of the nature of the process and the status of knowledge of the universe, from the philosophical point of convex - concave symmetry of the difficulties faced by humanity, then use the concept of convex - concave symmetry to solve some knotty problems, from a philosophical point of the final for science to lay a good foundation.

本文先介绍了人类对自然界的认识过程和对宇宙现状的认识程度，再从凹凸对称的哲学角度探讨人类所面临的困难，然后用凹凸对称的观念来解决某些疑难问题，最后从哲学的角度为科学打下一个良好的基础。

After some experimental results obtained in machining samples with complex ruled surface, concave spherical surface, convex surface and samples with both concave and convex surface are analyzed, the value of these samples in practical prodúction is discussed.

通过对一些典型的复杂直纹曲面样件以及凹球面、凸球面和凸凹复合球面样件加工实验分析，探讨了这些样件在实际生产中的应用价值。

A grating function and a groove function are introduced to determine the structure of a concave grating. Basic ideas for the design of a flat-field concave grating with three stigmatic points are proposed. As a proof of the usefulness of these design approaches, image conditions of the grating with three stigmatic points are developed which concise with other published results and they are more general than those obtained from holographic gratings.

采用与分析三维光栅相类似的级数展开法给出了二维集成凹面光栅的球差、彗差的计算方法，计算中用光栅函数和槽面函数来描述具有任意形状和任意变化周期的光栅，提出了一种具有三个无像差点的平面场型凹面光栅的设计方法，利用该方法推导了三点无像差光栅的成像条件，与文献中用其它方法获得的结果相一致，该结果与全息光栅的成像条件相比，更具一般性。

Holographic concave gratings with three stigmatic points can be implemented through considerable design. Results obtained from holographic gratings can also be applied to ruled gratings. Sphere and coma aberrations for a planar concave grating are achieved through power expansions.

通过适当的设计，可以使得全息光栅具有三个无像差点，这些分析虽然是针对全息光栅而得到的，但通过记录参数的合理选择可以将其应用到刻划光栅中去，得到等价的刻划光栅的参数。

The thickness of the ice cover on the wall surface heat transfer is greater than the thickness of it on the air heat transfer form. The thickness of the ice cover on the wall surface heat transfer along the way changes slowly, but it on the air heat transfer along the way changes significantly. Reducing the entrance velocity, lowering the wall surface or air temperature, the formation of the thickness of the ice cover will increase; in the 3D circumstances, The thickness of the ice cover was relatively uniform in the import of the U-turn model, the ice cover was gradual accumulation in the convex bank when the stream traversed the import of the U-turn model, the thickness of the ice cover in the convex bank was significantly bigger than the thickness in the concave bank. The temperature field under the ice cover tends to be complex because of the existence of the secondary flows. The temperature in the convex bank is greater than it in the concave bank. Compared with the data from experiments, the laws in the numerical simulation are similar with them in the experiments

模拟结果显示：二维情况下，运用壁面传热形成的冰盖厚度大于运用空气传热形成的冰盖厚度，壁面传热形成的冰盖厚度沿程变化缓慢，而空气传热形成的冰盖厚度沿程变化明显，减小入口流速，降低壁面或空气温度等，形成冰盖的厚度都会增大；三维情况下，弯道入口处凸、凹岸形成的冰盖厚度基本相同，进入弯道后，凸岸形成的冰盖厚度逐渐增大，而凹岸的冰盖厚度逐渐减小，受横向环流的影响，冰盖下水流的温度场趋向复杂，并且凸岸的温度小于凹岸的温度；与实验室实验所得数据相比较，数值模拟研究得到的规律基本符合实验规律。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48