梯形
echelon; ladder-shaped; trapezium; trapezoid
keystone shaped; ladder
梯形波
trapezoidal wave
梯形产生器
staircase generator; trapezoidal generator
梯形的
trapezidal; trapezoid
梯形法
keystoning
梯形畸变
keystoning
梯形夹
ladder splint
梯形聚合物
ladder polymer
梯形螺纹
Acme screw thread
梯形螺纹攻
acme thread tap
梯形滤波器
trapezoidal filter
梯形脉冲
trapezoidal pulse
梯形目标
mire
梯形失真
keystoning
梯形试片
step-bar test piece; stepped test bar
梯形衰减器
ladder attenuator
梯形体
trapezoid
梯形图
ladder chart
梯形图案
trapezoidal pattern
梯形网络
ladder network