单词	grooved pulley
释义	grooved pulley 槽轮,三角皮带轮
随便看	pollution controlling pollution control management pollution-control management pollution controlmeasure pollution control measure Pollution Control of Huaihe River pollution control of miliary harbor Pollution Control of Ocean Ships Pollution control of SA plant pollution control planning Pollution Control Report pollution-controls pollution control system pollution control technique pollution control technologies pollution control technology pollution control terminal Pollution Control Valve pollution convention pollution cost pollution countryside pollution-creating source pollution credit pollution criterion pollution cuased by coal