词汇	carpet underlay
释义	carpet underlay 地毯衬垫
随便看	materials science and engineering specialty materials science and engneering major materials sciences materials sciences in space materials scienee materials scientist materials-seized machine materials selection materials, self-lubricating Materials shooting materials shortage materials-special funds materials specialty materials specification materials specification manual materials specifications materials standard materials standard costs materials standardization materials statement Materials statically materials stock materials stocks materials strength materials structure and property