查询词典 nacreous

The growth morphology of nacreous layer of shell of freshwater Hyriopsis Cumingi from E'zhou, Hubei Province, is studied by using the polarizing microscope.

采用偏光显微镜对湖北鄂州淡水三角帆蚌壳珍珠层的生长形态进行了研究。

Mica ; titanium dioxide ; nacreous pigment ; preparation ; boiling hydrolysis ; sulfuric acid

云母；二氧化钛；珠光颜料；制备；沸腾水解法；硫酸

The FTIR spectra of aragonites from different origins, which include aragonites from nacreous layers of pearls and bivalve shells, coral skeletons and natural inorganic aragonites, are measured and comparatively analyzed.

对3种类型的文石即珍珠和贝壳珍珠层、珊瑚及天然无机文石的FTIR光谱进行了测量和对比分析。

The results show that the ν_2 vibrational frequency of aragonites from nacreous layer has the mean value of 863.6 cm~(-1 )which is about 7.9 cm~(-1)and 9.1 cm~(-1), higher than that of aragonite from coral skeleton and natural inorganic aragonite respectively.

结果表明，珍珠和贝壳珍珠层文石的ν2频率平均值为863.6 cm-1，较珊瑚及天然无机文石存在明显的蓝移现象，蓝移值分别为7.9 cm-1和9.1 cm-1。

For thesake of knowing mechanism of preparing nacreouspigment of mica titanium and adjusting pH with urea, we need to measure fast and exactly concentration of titanium to direct preparing top grade nacreous pigment of mica titanium.

为了更好地了解尿素中和法制备云母钛珠光颜料过程中钛水解的机理，指导高档次云母钛珠光颜料的制备，需要对该过程中钛的含量进行准确快速的测定，本文对过氧化氢分光光度法测定钛的方法进行了实验研究。

In the preparation of mica iron nacreous pigment with urea hydrolyze method, some factors such as pH, linear range, minimum limit of detection, response time and interfering material will affect this determination.

实验选用氨气敏电极测定溶液中的铵离子，考察了影响氨气敏电极在尿素中和法制备云母铁珠光颜料过程中测定铵的各种因素：pH值、线性范围、最低检出限、响应时间、干扰物质等。

TiO2 - mica nacreous pigment with Fe2O3 is prepared by the process of boiling hydrolysis.

采用沸腾水解法制备三氧化二铁包膜云母钛珠光颜料。

An iridescent oil slick; nacreous clouds looking like mother-of-pearl; a milky opalescent luster .

彩色的浮油；看起来像珍珠母一样光芒四射的云彩；乳白色的、像珍珠一样的光泽。

The paper describes four types of fashion effects on leather finishing, namely, aniline effects, oil pull-up effect, brush-off effect and nacreous effect, in the aspects of their origination, basic principle and finishing operations, with illustration of formulations and finishing procedures.

本文扼要介绍皮革整饰苯胺效应，油变效应，擦色效应和珠光效应四则时尚效应的大致由来，基本原理和加工要旨，并列举工艺配方，操作示例。

The structure of nacreous layer is characterized as a form of "brick wall", laying the "bricks" with organic matter and aragonite slices.

珍珠层呈现"砖墙"结构特征，由有机质将文石小板片如"砌墙"般垒积而成。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。