单词	are of service
释义	are of service n.有用
随便看	cross-sectional area index Cross-sectional area of bulk grain cross-sectional area of conductor cross-sectional area of fuel-metering orifice cross-sectional area of fuel spray nozzle cross-sectional area of nozzle cross-sectional area of the cable cross sectional area of the uncut chip cross sectional cardiac ultrasonic cardiogram cross-sectional comparison cross-sectional comparisons crosssectional congiguration cross sectional congiguration cross sectional data cross-sectional data cross sectional datum cross-sectional deformability cross-sectional deformation cross-sectional design cross sectional diagram cross-sectional diagram cross sectional diameter cross-sectional dimension cross sectional dimensions cross sectional growth