Mercury in crude gold has been determined directly without separation by AAS with potassium thiocyanate as the masking reagent for gold and SnCl_2as reductant to reduce mercury into the vapour atomic mercury in NaOH medium.

The selectivity of the method may be increased by addition of thiocarbamide as masking reagent and pre-separation of the interferential elements using NH_3-NH_4Cl. This method is simple, rapid and accurate.

加入硫脲作掩蔽剂和用NH3-NH4CI预分离干扰元素可提高方法的选择性。

Mixing colour solution contains isopropyl alcohol, triethanolamine, masking reagent and Br-PADAP.

载流溶液为异丙醇，混合显色剂组分为异丙醇、三乙醇胺、Br－PADAP和掩蔽剂。

Computer treatment of acidity conditions of reactions between organic agent and metallic ion when masking reagent is present

具掩蔽剂存在金属离子与有机试剂反应适宜酸度条件的计算机处理

Nm, with ascorbic acid as a reducing reagent, thiourea as a masking reagent, iron, cobalt, copper and indium could be masked.

用抗坏血酸为还原剂，硫脲为掩蔽剂，可以掩蔽铁、钴、铜、铟。

The masking effect of sound and its application

声音的掩蔽效应及其应用

Improved MFCC Feature Extraction Algorithm Based on Hearing Masking Effect

基于听觉掩蔽效应的改进MFCC特征提取算法

An Audio Digital Watermarking Algorithm Based on Auditory Masking Effect

一种基于听觉掩蔽效应的音频数字水印算法

An analysis of the results of central masking effect on healthy ears

正常人中枢掩蔽测试结果分析中枢掩蔽与耳声发射对侧抑制相关性研究

Detail Vector Selection Method Based on Human Vision's Contrast Masking Effect

一种基于反差掩膜效应的细节数据筛选算法

Color Image Blind Watermark Algorithm Based on Spread Spectrum Modulation and Visual Masking

基于扩频调制和视觉掩蔽的彩色图像盲水印算法

When watching 3D video there is a visual masking effect.

人眼观看立体视频时，具有视觉掩盖效应。

Adaptive Image Compression Based on Visual Masking Effect

基于视觉掩盖效应的自适应图像压缩算法

Image compression using 2-D wavelet transform and visual masking model

利用二维小波变换和视觉模型进行图象压缩编码

Algorithm of image watermarking based on chaotic system and human visual masking

基于混沌系统和人类视觉掩盖的图像水印算法

Digital Watermarking Technique of Image Based on Visual Masking

基于视觉掩蔽特性的数字水印技术

A robust watermarking authentication algorithm using the value of visual masking

利用视觉掩蔽值的稳健水印认证算法

Thanks to the "masking" technique that employs a cavity function to depict a hard wall with a certain thickness, the phase separation of mixed polymer brushes was investigated at a nanosphere with its radius comparable to the polymer size.

我们采用所谓的“masking”方法，即采用空穴函数来描述有一定厚度的硬壁，研究了当微球尺寸和高分子尺寸相当时，高分子共混刷体系在纳米微球上的相分离行为。

The method adopts the frequency domain masking technique to mask the peak fields of the radar echos' Fourier transform data, and uses the fractional correlation comprising of Fractional Fourier Transform ( FrFT) and inverse Fourier transform to detect the ARM only in one-dimensional searching.

该方法利用雷达回波的频域（Fourier变换）数据，根据尖锋作遮隔处理后，直接运用基于分数阶Fourier变换（FrFT）和Fourier逆变换的分数阶相关方法，通过一维搜索来检测ARM。

Accordingly, a FIR filter based on frequency response masking technique is introduced into the design of digital down-converters, its efficient implementation architecture is given and the complexity of the algorithm are studied thoroughly.

该文将基于频率响应屏蔽（FRM）方法的FIR滤波器引入到数字下变频器设计中，并详细地研究了此类数字下变频器的高效实现结构和算法复杂度。

Combination and synthesis technique of density hierarchy film is an optical and electronic processing technique which draws on the experience of the relative masking technique and highlights texture information of images.

密度分层组合成技术是通过对遥感图象密度层次的分折，以突出影象的结构信息为主的一种光孚图象处理方法。