查询词典 subtraction

In this paper, a new method of moving-people detection based on fusion of coterminous frames differencing and background subtraction is proposed.

提出一种基于对称帧间差分与背景减除相结合的运动目标检测和自适应背景更新方法。

Functions include wave form addition, wave form subtraction, Lissajous Pattern display, transient signal recording, RMSamplitude spectrum display, relative amplitude spectrum display, phase spectrum display, auto correlation coefficient display, cross correlation coefficient display, function generation, and multi-tone generation.

功能包括音形叠加，音形结构，Lissajous Pattern 显示，暂时信号记录，RMS 声谱振幅显示，相关声谱振幅显示，自动相关系数显示，交错相关系数显示，函数生成以及多声音生成。

Methods The data of digital subtraction angiography and CTA in 116 patients with PCIV was analyzed.

对116例后循环缺血性眩晕病人的数字减影血管造影和CTA检查资料进行分析。

Unlike the simple counting board used in elementary schools, very efficient suanpan techniques have been developed to do multiplication, division, addition, subtraction, square root and cube root operations at high speed.

不同于简单的计数在小学使用的电路板，非常有效的suanpan技术已经发展到这样做乘法，除法，加法，减法，平方根和立方根业务的高速增长。

The percentage of correct answer of mathematics learning-disabled students in addition, subtraction, multiplication, and division of fraction and decimal is lower than that of normal students.

在带分数乘以整数的分数来法中，数学学习障碍学生只做整数部分的相乘忽略分数部分。

To achieve two number two decimal addition and subtraction operations, and has a friendly interface.

能够实现两个二位十进制数的加减运算，并具有友好的界面。

In order to relieve the working pressure of traffic police, we should carry on the division and subtraction of depressurization through adjusting the group and individual sentiments.

缓解交警的压力，要通过调节群体和个体情绪，做好降压的除法、减法和加法。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

Traditional integer division algorithm used many subtraction to achieve the operation,the process by spending a lot of clock pulse,but also the results of the operation did not deal with the last one bit.

摘 要：传统整数除法算法采用多次相减的方法来实现运算，相减的过程耗费了大量时钟脉冲，而且对运算结果的最后一位没有进行处理。

You are poor at double-digit addition and subtraction.

你不擅长两位数的加减法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。