词汇	前导系统
释义	前导系统 vanguard system
随便看	constant-deceleration orifice constant declaration constant declaration section constant declaration syntax constant declarator constant declarator subscript constant decompression constant definition constant definition part constant deflection test constant-deflection test constant-deformation test constant-degree constant-degree system constant delay constant delay discriminator constant-delay discriminator constant delay network Constant delays ticked me off constant, deliberately maintained proportion constant delimiter constant deliver pump constant delivery constant-delivery constant delivery displacement pump