This paper analyzes the down sample effect on harmonics using Discrete Fourier Transform(DFT),analyzes the frequency pision character of WPT,Simulations validate the results obtained.
本文利用离散傅立叶变换原理分析了向下采样对信号的影响 ,分析了小波包变换得到的频带的特点 ,在此基础上 ,分析 WPT频带划分的特点 ,通过仿真验证 ,本文得到的结论是正确的 ,从而为小波包变换在电力系统中的广泛应用打下了良好的基
To exert downward pressure on(a button or keyboard, for example;press.
按，压下在（按钮或键盘上）施加向下的压力；压，按
a screwdriver with a spiral in the handle so the blade rotates with downward pressure on the handle.
手柄上有螺旋可以使刃片有向下的压力旋转的螺丝起子。
But it can't push down on the water because the water is inside the glass.
但是它不能给水以向下的压力因为水装在杯子里。
massive downward pressure
强大的向下调整压力
Capacity or inclination to yield under pressure.
支持不住在压力下屈服的能力或倾向
Uplift is the upward pressure under a dam.
上浮压力指的是在坝体下面向上作用的压力。
PORE PRESSURE OF SOFT CLAY UNDER ROTATING PRINCIPAL STRESS
主应力方向偏转下的软粘土孔隙压力性状
Soil pressure explain for load direction effects on pile's friction bearing properties
不同荷载方向下土压力对桩土摩阻力的影响
As you turn the tension post in direction B, the pressure will be decreased.
向B的方向转动压力则压力变弱。
They were willing to compromise with us by the strong outside force.
在强大的外界压力下，他们愿意向我们让步。
Selection of Exchange Rate Policy to the anticipation of RMB Appreciation;
人民币升值预期压力下的汇率政策取向
Dynamic Analysis of Piezoelectric-Elastic Layered Bar Under Longitudinal Impulse
纵向脉冲作用下压电层合杆的动力分析
Ice crystals begin to deform measurably under a unidirectional pressure of slightly less than one atmosphere.
在略小于一个单向大气压的压力下，冰晶就产生某种程度的变形。
Numerical Simulation Analysis on Dynamical Flattening of Transverse Pressured Thin-Wall Circular Steel Tube under Shock Wave
横向受压薄壁圆钢管在冲击波作用下动力压扁的数值模拟分析
Research on the Population pressure from the Perspective of Human Resources--study on the patterns by which the population pressure change to the human resources advantages
人力资源视角下的人口压力——兼议我国从人口压力向人力资源优势转变的模式
STUDY ON STATIC STRENGTH OF RHS T-JOINTS WITH REINFORCED CHORD THICKNESS SUBJECTED TO AXIAL PRESS LOAD
轴向压力作用下主管壁加厚的T型方钢管节点静力强度研究
As you turn tension post 3 in direction A, the pressure will be increased.
向A的方向转动线张力杆3则压力变强。
Analysis on the vibration characteristics of cracked beams subjected to axial force
轴向压力影响下裂纹梁振动特性分析