1适用范围 本方法是用王水作消化剂从水样中提取痕量元素。本方法适用于各类水,其中水中悬浮 颗粒物浓度小于20g/L,总有机物浓度(以碳表示)小于5g/L。 王水消化法适用于释放水样中Ag、Al、s、B、Ba、Be、Ca、Cd、Co、Cr、Cu、Fe、 Hg、K、g、Mn、Mo、Na、Ni、P、Pb、Sb、Se、Sn、r、ti、v、n,不适用于耐火化合 物(如SiO2、TiO2、Al2O3)的消化

顺序查找是一种最基本和最简单的查找方法。它 的思路是,从表中的第一个元素开始,将给定 的值与表中逐个元素的关键字进行比较,直到 两者相符,查到所要找的元素为止。否则就是 表中没有要找的元素,查找不成功。对于表中 记录的关键字是无序的表,只能采用这种方法 。描述顺序查找的算法见框图8-1其中n是表r 的长度,k是要查的元素的关键字,i查到的元 素的序号

18.1 Special Architectures Pipelining. Parallel Processing. Retiming. Unfolding. ia Folding Transformation Look-Ahead Technique. Associativity Transformation. Distributivity Arithmetic Processor Architectures. Computer-Aided Design. Future VLSI DSP Systems Keshab K. Parhi 18.2 Signal Processing Chips and Applications University of Minnesota System. Implementation of a Finite Impulse Response Filter with Rulph Chassaing the TMS320C25. Floating-Point TMS320C30-Based Development Roger Williams University

19.1 Digital Signal Processing in Audio and Electroacoustics Bell Laboratories Steerable Microphone Arrays. Digital Hearing Aids.Spatial Processing. Audio Coding. Echo Cancellation Active Noise Sanjay K.Mehta and Sound Control NUWC Detachment 19.2 Underwater Acoustical Signal Processings G. Clifford Carter

1、渐开线齿廓上K点的压力角应是 所夹的锐角, 齿廓上各点的压力角都不相等,在基圆上的压力角等于 2、满足正确啮合条件的一对渐开线直齿圆柱齿轮,当其传动比不等于1时,它们的 齿形是的

6-14在300K的温度下,2m理想气体的体积从4.0×10-3m3等温压 缩到1.0×10-3m3,求在此过程中气体作的功和吸收的热量

一、公式的导出 设将[abn等分,步长为h,求积节点为:xk=a+kh,(k=0,1,,n)由此构造插值型的求积公式,则其求积系数为

一、单项选择题 1.800℃,Ca(s)+CO2(g)=CaCO3(s),K0=77P0,此时CO2得分压p(CO2)为

49.1 Introduction 49.2 Mechanical Characteristics Applications. Structure of Ferroelectric and Piezoelectric Materials 49.3 Ferroelectric Materials K. F.Etzold Electrical Characteristics

rnating Current Overhead: Line Parameters, 61.1 Alternating Models, Standard Voltages, Insulators ine Line Parameters. Models- Standard Voltages.Insulators Mo-Shing Chen 61.2 Alternating Current Underground: Line Parameters, University of Texas at Arlington Models, Standard Voltages, Cables Cable Parameters.Models. Standard Voltages. CableStandards K.C. Lai 61.3 High-Voltage Direct-Current Transmission