单词	preparation of paper
释义	preparation of paper 🌏备纸
随便看	double row chain transmission double-row compressor Double row concave ridge double-row concave ridge double-row conic roller bearing double row cowshed double row cylindrical roller bearing double row cylindrical roller bearings double-row design double-row disk double row double butt strap rivet joint Double row double-direction thrust bearing double row drilling double-row drilling double row engine double-row formula double-row hog house double-row hp heaters double row hydraulic type pusher double-row hydraulic type pusher double-row-key electronic organ double row layout double-row layout double row of dots double row of hooks