查询词典 concave lens

If you wish to set up a 2.40 rig using an A-lens (I am weary of typing out the phrase "anamorphic lens" so henceforth it shall be A-lens, or simply lens if the context is clear), the HC6800 has the capability of switching back and forth between 2.40 format movies or 16:9 material without moving the A-lens.

如果你想建立一个2.40钻机使用A -镜头（我厌倦输入4个字&变形镜头&，因此今后应是A镜头，或只是镜头如果上下文是明确的），该HC6800拥有2.40之间的交换格式的电影或16：9的材料不来回移动的A镜头的能力。

Measuring the focal length of concave lens using collimator;2. The relation between the focal length of a concave lens and its reflective image properties is analysed and deduced.

本文分析推导了透镜的凹面反射成像与凹透镜焦距的关系，介绍了利用此关系较方便地测量凹透镜焦距的方法。

The latest experimental results of the focusing perfermance of the compound high-energy X-ray lens is designed with PMMA with the parameters of 40 plano-concave elementary lenses positioned in line with axial symmetry, 200 μm radius of the concave surface, 0.15 nm working wavelength, 0.5 mm geometrical aperture and 8 mm length of the compound lens and 1.3 m focus length, are briefly introduced.

报道了这种新型X射线光学元件聚焦性能的最新实验结果。设计的高能X射线组合透镜为聚甲基丙烯酸甲酯材料，包括40个相同的、顺序排布的平凹折射单元，折射单元的球面半径为200 μm，组合透镜的几何口径约为500 μm，长度约为8 mm，焦距约为1.3 m。简要描述了PMMA材料X射线组合透镜的制作技术和制作过程。并给出了X射线组合透镜聚焦性能测试实验系统和实验条件。

Inequality proof of various ways, they were: use derivative testify inequality nature, Includes using functional monotonicity and extreme value, the function and the concave and convex inequality, proving is concave and convex function in the original definition of equivalent definitions and a lemma is proposed on the basis of relevant concave and convex function of several theorems about inequality, and briefly discusses how to use the definitions and theorems in proof of inequality.

不等式的证明方法多种多样，它们分别是：用导数性质证明不等式；包括利用函数单调性，极值与最值，函数凹凸性证明不等式，其中在给出凹凸函数原始定义等价的解析定义和一个引理的基础上提出有关凹凸函数关于不等式的几个定理，并简要阐述了利用定义和定理在证明不等式中的运用。

With the concave transaction cost function more conforming to the actual situation, we introduce condition risk value to measure profolio risk, and propose mean- CVaR concave integer programming model under concave transaction costs and minimal transaction unit constraints.

1取交易费用函数为更实际的凹函数，引入条件风险价值度量组合风险，提出了考虑交易费用及最小交易量的均值—CVaR凹整数规划模型。

Properties of efficient portfolios and the efficient frontier to the model are systematically analyzed. Our main results concerning the properties are: every efficient portfolio can be solved by minimizing portfolio risk under a given level of portfolio return or by maximizing portfolio return under a given level of portfolio risk; on the efficient frontier, the risk is a convex and strictly increasing function of the return and the return is a concave and strictly increasing function of the risk; the utility function on the efficient frontier can be expressed as a quasi-concave function of the risk or the return if the investor's utility function is quasi-concave.

从理论上系统地对该模型下的有效投资组合和有效前沿的性质进行了分析，结果表明：每一个有效投资组合可通过在给定期望收益水平的条件下最小化投资组合风险来获得，或者在给定风险水平的条件下最大化期望投资组合收益来获得；在有效前沿上，风险是收益的严格单调递增凸函数，收益是风险的严格单调递增凹函数；当投资者的效用函数是拟凹函数时，则有效前沿上的效用可表达成风险或收益的拟凹函数。

3When mark price increase, the advertising cost, the optimal order and the lower bound of total profits increase in three cases. In the S shaped function, the advertising cost in three case decreases concave downwards, and in concave shaped function, the advertising cost increases concave upwards.

3当成本加成率m递增时，在三个个案中，广告支出、订购量以及利润下限都向上递增，在S型函数中，三个个案下的广告支出效果为凹面向下，而凹型函数中，广告支出效果则为凹面向上。

Under the condition of small angle misalignment, the effecton output beam's near-field distribution of CO2 lasers with two-dimensional axisymmetric-fold combination cavity was ascertained after analyzing and simulating beams combination output based on the axis determination of misaligned plano-concave and concave-plano-concave cavity resonator.

为了研究小角度失调对二维轴对称－折叠组合腔CO2激光器输出光束的近场分布的影响，在利用矩阵理论确定平凹谐振腔和凹－平－凹谐振腔失调后的光轴的基础上，采用光束并和思想，对输出光束进行了理论分析和模拟。

Stainless steel concave end knurling;DIN915 Stainless steel cylindrical end; DIN914 Stainless steel pointed end; DIN916 Stainless steel concave end; DIN913 Stainless steel flat end; DIN551 Stainless steel slotted point; DIN906 Stainless steel oil plug,semi-circular; Stainless steel two-end hexagonal non-standard; Brass internal hexagonal,cross,non-standard; Brass wobbler,nickel-plated; Stainless steel ,alloy steel heat-resistant; Alloy steel zinc-plated; Alloy steel semi-circular; DIN915 Alloy steel cylindrical end, Philips screw non-standard; DIN916 Alloy steel concave end;DIN914 Alloy steel pointed end;DIN906 Alloy steel oil plug; Corrugated ball; Two-end internal hexagonal non-standard; Textile machine screw-nail; Tool-post screw-nail

不锈钢凹端滚花；DIN915 不锈钢柱端；DIN914 不锈钢尖端；DIN916 不锈钢凹端；DIN913 不锈钢平端；DIN551 不锈钢一字槽；DIN906 不锈钢油塞、半圆；不锈钢2头内六角非标；黄铜内六角、十字槽、非标；黄铜梅花头、镀镍；不锈钢、合金钢耐落；合金钢镀锌；合金刚半圆；DIN915 合金钢柱端、十字槽、非标；DIN916 合金钢凹端；DIN914 合金钢尖端；DIN906 合金钢油塞；波珠；2头内六角非标；纺织机螺钉；刀架螺钉。

Have known concave-convex soil of landed estate and the new model compound adsorption driers taking the person as raw material such as Anhui Ming Guang , Jiangsu Xuyi, local concave-convex structure and water absorption function, think that concave-convex soil has but is H2 , N completely compared with zeolite molecular sieve, 2, O 2, air waits for the inactive gas adsorption drier.

了解了安徽明光、江苏盱眙等地产凹凸土及以其为原料的新型复合吸附干燥剂，凹凸土的结构和吸水性能，认为与沸石分子筛相比，凹凸土完全有可作为H2、N 2、O 2、空气等惰性气体的吸附干燥剂。

Triumphant, he paid with a $10 bill.

他得意洋洋的，付了10美元。

I'm afraid that I cannot go with you.

我恐怕不能和你一起去了。