词汇搭配
短语
gravelling of road砾石铺路
gravelling by two ash二灰碎石
权威例句
WELL GRAVELLING TOOLWELL GRAVELLING TOOLWell gravelling toolWell gravelling toolWell gravelling toolWell gravelling toolQuality Control of Gravelling by Cement Stabilized Crushed StoneAssessment of gravelling impact phenomenon on helicopter glass windshieldsTechnical Measures to Prevent Soil Gravelling in Liaodong Mountainous AreaApplication of a new technology to gravelling in the casing during the filling of filter materials in a hydrological well
