词汇	electron ray
释义	electron ray 电子射线
随便看	double-chain polymer double chain pulley double-chain quaternaryammonium salt double chain retarder double chain riveting double-chain scraper conveyer double chain silicate double chain silicate, double band silicate double-chain slat conveyor double chain sling double-chain stitch machine double chain-stitch sewing machine double chain structure double-chain structure double-chain surfactant double chain suspension bridge double chain system double chair double challenges double chamber double-chamber balancing vessel double-chamber channel induction furnace double-chambered fight ventricle Double-chambered right ventricle double-chambered swim bladder