查询词典 safety glasses

When you wear Widen hat with sun-glasses together.widen cat and the headband can protect 50% sun radiation, reduce sun radiation inter your eye from glasses rouding

宽边帽子和太阳镜一起戴。宽边帽子和头巾阻挡50%的太阳辐射，减少从镜片四周进入你眼睛的太阳辐射。

Then we test the density, transmittance properties of these tellurite glasses. The result shows that these glasses\' density is 2～3 times of that of silica and UV cut-off wavelength is quite short.

然后又研究了Na_2O-TeO_2-WO_3-Al_2O_3和TeO_2-TiO_2-La_2O_3碲酸盐玻璃的形成与性能，研究表明，这两个体系玻璃的Tg和Tx-Tg的综合性能较好，具有良好的工艺性。

The Raman and infrared spectra of tellurite glasses were studied, and the influence mechanism of OH- on upconversion luminescence of Er3+-doped tellurite glasses was analyzed.

研究了碲酸盐玻璃的拉曼光谱和红外光谱，分析了OH-对掺Er3+碲酸盐玻璃上转换发光的影响机制。

So these tellurite glasses may be good candidates for broadband optical window material.Different concentration rare earth ions doped different kinds of tellurite glasses have been done in our experiment.

透过光谱的结果表明这两个体系玻璃的光透过率较高，而且紫外吸收截止边较短，具有宽的透过窗口。

In this paper, first, we analyse the glass forming ability by theoretic method and experiment. Then we have the glass forming zone by experiment for our research\'s convenience. In this zone, we have detrail research on the Na_2O-TeO_2-WO_3 glasses and analyse the microstructure, raman spectra, thermal stability, crystallization of the tellurite glasses.

本文首先以玻璃形成理论为基础，分析了碲酸盐体系的成玻性能，并通过实验研究，确定了Na_2O-TeO_2-WO_3体系的成玻范围，研究了该体系玻璃的微观结构、热性能和析晶性能等。

Major with white green red,up dress is fit or same for colour,major with undertint or color,trousers is major with jeans,suspension band dress break out half of back body, basseting navel 10cm beside up and down,some hair of navel appear,the shoes is major with slipper stilt-shoe,all kinds of colour,rump up and being 120 degree with body,abdomen stick out,become S type,hair spread over the shoulder,yellow or dithered color is nice,some hair together up the head ,someone together two side hair with hair clasp,light dress up face,lipstick nature,face is red,many with glasses that are big glasses,grape red,up on the head,every woman have a bag with itself,white more,it is same color or fit with up dress,but color light.woman walk fast,body straight ,eye sight forword,sometimes their dress fit whit mate,night dress may dress to street.

以百色、绿色、红色为主，上衣与鞋颜色相配或一致，以浅色或彩色为主，长裤以牛仔为主，吊带装露背1/2，露胸及乳房的1/3，腰间露肚脐上下各10cm ，下部微露毛；鞋以拖鞋及高跟鞋为主，五颜六色，臀部上翘与腰成120度夹角，腹部前挺，呈大 S 型，头发以披散为多，长以过肩为界，黄色或杂色娇美，打发髻较高，或用小发卡夹住两边各一小绺，面部以淡妆为主，口红自然色，面颊微红，戴眼镜较多，以大镜片，葡萄红为主，戴在头顶作装饰较多，小肩包人人有，以白色居多，但一般与上衣搭配较合理，较衣服色浅。一般走路较快，身体笔直，不左右看。同性相伴造型一至，有时颜色统一。一般睡衣可以上街穿。

Apart from this polarizing feature, these glasses serve the same purposes as any dark glasses, absorbing 50% of the incident light; in an unpolarized beam, half the light can be considered as polarized horizontally and half vertically, and only the vertically polarized light is transmitted.

除偏振特色之外，为了同一目的，眼镜可以做成暗色，50%的入射光可以被吸收；在非偏振的入射光，有一半可以认为是水平偏振，另一半认为竖直偏振的。这样仅有竖直偏振光可以传播。

With glasses Anaglyphic Polarization Alternate-frame sequencing Without glasses Autostereoscopic displays Furthermore, alternative systems, such as Pulfrich effect exist, but fall under the realm of "pseudo-stereoscopic" in that two, separate records are not recorded or projected.

技术 有多少种投射自然立体画面的办法，主要能两类：用眼镜的： Anaglyphic -分色法 Polarization -偏振法 Alternate-frame sequencing-交替画面顺序法不用眼镜的： Autostereoscopic displays -自动立体显示另外还有其他的系统比如Pulfrich effect(由于两眼的视觉信号传递速度不同，而导致视觉内平行移动物体有深度效果)存在，但与前两种相比，这一种被归为&假立体&范畴，没有两个画面的拍摄或显示。

The phosphate, vanadate and bismuthate contained glasses are promising candidates for the substituting of the lead glasses currently most used by the electronic pastes.

磷酸盐、钒酸盐、铋酸盐玻璃体系是目前含铅低熔玻璃的取代物。

For example, glasses containing MgO where dolomite is cheaper than limestone, and low alumina glasses where feldspar or feldspathic sands are at a premium.

再举个例子，在白云石比石灰石廉价的地区出产的玻璃里会含MgO；在长石或长石质砂价格高涨的地区会出产低铝玻璃。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。