非字形组件
character non-formation component
汉字组件
Chinese character component
Hanzi component
数字组件测试法
digital components testing
testing,digital components
testing, digital components
Testing
digital components
组件字段描述叙述
element field description statement
抗磨衬套耐变形组件
wear sleeve distorter group
两侧被打开的盒形组件
box shaped module open on two sides