词汇	v shaped recess
释义	v shaped recess v 型槽
随便看	powdered carbon powdered carborundum powdered carrageenin powdered catalyst powdered cation exchange resin powdered caustic powdered caustic soda powdered cellulose powdered chalk powdered charcoal powdered chocolate drink powdered cream Powdered Croton Seed powdered crystal method powdered curve coveyor powdered desiccated ovary powdered detergent powdered diffraction file powdered digitalis powdered digitalis leaf powdered digitalis,prepared digitalis powdered dispersed colors powdered dispersed colours powdered drink powdered drug