词汇	Zheng Yizheng
释义	Zheng Yizheng 郑义正
随便看	sub-grade material subgrade materials subgrade modulus sub-grade modulus subgrade modulus of resilience subgrade moisture subgrade moisture content subgrade monitoring subgrade moudulus subgrade of cohesive soils sub-grade of highway subgrade of railway subgrade of soft soil subgrade of special soil subgrade of speedier railway subgrade padding subgrade pavement subgrade planer subgrade pressure subgrade project subgrade protection subgrader sub-grader subgrade rating subgrade reacting force