screw conveyer meaning in English

螺旋式输送机
螺旋输送机
螺旋输送器
螺旋运输机
螺旋运输器

It also introduces design theory about paver working characteristics and states design method and calculation formula for travelling , bar conveyer , screw conveyer , vibratory rammer , vibration screed , hydraulic system and electric system some empirical formulas and design parameters are presented
并完整地介绍了行走、刮板、螺旋、振捣、振动、液压、电气等系统的设计方法和计算公式，同时还推荐了一些经验公式和设计参数。