弹齿 meaning in Chinese

spring tine
vibrator tooth

Development of spring - tooth plastic film collecting machine
弹齿式收膜机主要结构设计
Brief report on research works of three papers
弹齿式收膜机构运动数学模型
Research on the collecting property of the spring - tooth - cylinder type mulching plastic film collector
弹齿滚筒式残膜捡拾机构捡膜特性分析
Design of arc spring - tooth type collector for collecting mulching plastic film the collecting property analysis
圆弧形弹齿滚筒式残膜捡拾机构设计及捡膜性能分析