查询词典 emission control

According to conventional field emission theory,the emitted electrons mainly follow the field emission mechanism because of their approximately straight Fowler-Nordheimplots.

样品的Fowler-Nordheim曲线基本为一直线，根据经典场发射理论，可以证实其电子发射机制为场发射。

There are still problems such as reaching nation stardard of formaldehyde emission and mechanical properties, high production costs , technology operation and so on since nation standard on limits of formaldehyde emission of wood panels and finishing products is forcibly carnied out .

自国家新出台人造板及其制品甲醛释放限量标准和强制执行以来，人造板产品始终存在甲醛释放和力学性能达标，和生产过程成本高，工艺操作差等诸多技术问题。

The fluorescence spectra of Eu~(3+) may be used to study the structure ofcompounds.The band shift of Nd~(3+) in its absorption spectra,the red-to-orangeintensity ratio of the Eu~(3+) emission(~5D_0→~7F_2)/(~5D_0→~7F_1)and the yellow-to-blue intensity ratio of the Dy~(3+) emission~4F_(9/2→~6H_(13/2)/~4F(9/2→~6H(15/2)intheir fluorescence spectra may be used to study the degree of covalency of theLn-O bond and its relation with the electronegativity of M in Ln-O-M.

本文介绍了利用 Eu~(3+)的荧光光谱研究化合物的结构；利用 Nd~(3+)的吸收光谱的谱带位移和 Eu~(3+)的荧光光谱的红橙发射强度比(~5D_0→~7F_2)/(~5D_0→~7F_1)和 Dy~(3+)的黄兰比~4F_(9/2→~6H_(13/2)/~4F_(9/2→~6H_(15/2)，了解Ln—O—M中 Ln—O 化学键的共价程度以及 M 的电负性对共价程度的关系；利用吸收光谱、荧光光谱和磁化率研究稀土的价态以及利用磁化率研究化合物的组成。

In compared with acceptor emitters, not only can the emission wavelength be tuned (up to 100 nm of red-shift) by H-bonds, but also much higher emission efficiencies of the H-bonded complexes were induced by reduced aggregation and energy transfer from the OXD donor dendrons.

另外，在使高分子形成高分枝结构之研究上、利用不同含量与不同官能基数目之carbazole单体与茀单体进行聚合，可得一系列高分枝状高分子，能使聚茀共轭高分子产生不同之分枝程度结构，这样方式有效改善分子间聚集之现象并且维持高分子主链良好共轭程度，使得产生之高分子具良好的萤光效率。

In monochromatic CL images, the green emission comes from randomly distributed dots and floccules that occupy almost the whole surface. The blue emission comes from the floccules only.

单色的阴极荧光谱发现绿光发射对应的发光区包括絮状区域和发光点，而蓝光发射对应的发光区仅包含絮状区域。

The visible emission and ultraviolet lasing emission of ZnO have been the subject of much research up to now.

目前，有关氧化锌的光学特性研究部分集中在氧化锌的紫外激光发射和可见发光机制方面。

Up to now, the visible emission and ultraviolet lasing emission of ZnO have been the subject of much research.

ZnO的辐射波长具有比GaN的蓝光发射更短，对增加光记录密度具有重要意义。

Up to now, the visible emission and ultraviolet lasing emission of ZnO have been the subject of much research.

目前，有关氧化锌研究部分集中在氧化锌的紫外激光发射和可见发光机制方面。

The sources of pollution are as follows, 1,feces discharged from public washroom emit an unbearable naucious odor; 2、water discharged from factories is black and odorous, covered with floating waste 3、air emission from factories smells pungent and spreads to every corner,4、air emission from fertilizer factories contains dust,lead, and coal ash, and other particles harmful to health 5、grasslands and lawns in parks are covered with litters which are unhygenic and unsightly.

造成环境污染的污染源是：1、公共厕所排出的粪便散发出难闻的气味，让人恶心。2、工厂排出的废水又黑又臭，还浮着一些秽物。3、工厂排出的废气很刺鼻，会散发到小镇的各个角落。4、化肥厂排出的气体中含有粉尘、铅、煤灰等对人体有害的物质。5、公园的草坪上常有游人丢弃的垃圾，既不卫生，又影响市容。

The transmission ratio exceeded 95% in near-infrared range, so the LCAS:Tm(superscript 3+) glasses can be used as high transmission optical glasses. The integral emission cross-sections outclassed 10^(-18)cm, the fluorescent ratios were higher and the radiative lifetimes were lenger, to the glasses are possible to be used as new laser function materials. The new strong and broad emissive bands for 400nm to 680nm emerge in the emission spectra of the another glasses samples.

高达95%以上近红外透过率表明，LCAS：Tm(上标 3+)玻璃可作为近红外波段高透过率光学玻璃；远大于10^(-18)cm的积分发射截面、较高的荧光分支比与能形成粒子数反转的荧光寿命表明，LCAS：Tm(上标 3+)玻璃可能成为一种新的激光功能材料。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。