查询词典 near-sightedness

The study and use of devices utilizing properties of materials near absolute zero in temperature.

对材料在接近绝对零度时的特性进行研究和利用的学科。

Previously, superconductivity occurred only in metals cooled to near absolute zero ( 273 degrees C).

而在此之前，其他超导材料的工作温度都在绝对零度（0K，-273℃）附近。

He seemed not to notice her, but he knew. Yet he worked on, as if absorbedly, and his brown dog sat on her tail near him, and surveyed the untrustworthy world.

他在这大地上所要的，便是孤独，他是到了这步田地的人了，但是，他没有力量去保卫他的孤独；他只是一个雇佣的人，而这些人却是他的主子。

A new method based on the Fourier-Bessel series is proposed to calculate the higher-order harmonic components of a nonlinear ultrasound field in absorbing medium and an analytical solution of a series form is obtained. A closed analytical solution of the higher-order harmonics in the zeroth-order Bessel ultrasound field and the focused Gaussian ultrasound field is deduced to study the field property, especially the near-field property.

提出了一种基于Fourier-Bessel级数的新方法，用于计算吸收媒质中非线性超声场的高次谐波分量，得到其级数形式的解析解，由此推导出吸收媒质中零阶Bessel超声场、Gauss聚焦超声场高次谐波的封闭解析解，进而对其声场特性尤其是近场特性进行了研究。

Based on the Volume of Fluid Method, the wave damping absorber of the numerical wave flume for irregular waves has been investigated. Setting the Turbulence motion equation and the Renault equation as the governing equations and using the wall function technique in the near-wall region, an absorbing wave-maker is set at the left side of the flume.

本文对基于VOF方法的不规则波数值波浪水槽进行了阻尼消波研究，以湍流运动方程一雷诺方程为控制方程，在近壁区应用壁函数技术，在数值波浪水槽的左端设置了主动吸收式造波机。

The effects of electron energy on spectral reflectanc e and solar absorptance are analyzed.The results are discussed relative to the change in spectral reflectance in the near infrared wavelength region.

分析了电子能量对光谱反射系数和太阳光谱吸收系数的影响，并对红外区光谱反射系数的变化结果进行了讨论。

In the solar and near infrared region it is more usual to speak of absorptivity than emissivity.

在日射和近红外区段内，讨论吸收率比讨论发射率更为普遍。

A man shows a scorpion he had caught in a desert near Abu Simbel, southern Egypt

一名男子展示的他在埃及南部阿布辛拜勒附近的沙漠中抓到的一只蝎子。

There were obviously more chafers near the castor-oil plant than soybean, cotton, sweet potato, peanut, elm, Abutilon theophrasti Medic, there was significant difference between them.

华北大黑鳃金龟对不同植物挥发性物质的选择反应(1)采用水蒸气蒸馏法，二氯甲烷萃取，提取植物叶片的挥发性物质，无论对雌虫还是雄虫，蓖麻叶粗提物的诱虫活性均显著高于棉花、苘麻叶片粗提物。

Our company locates in the middle part of Zhejiang, abutting against Yiwu, near to Hangzhou.

我公司地处浙江中部，紧靠义乌、杭州，公路、铁路、航空交通十分便捷。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐