单词	resource and environment
释义	resource and environment 资源环境
随便看	double-acting brake double acting brake cylinder double-acting brushing machine double acting bucket double-acting bucket double-acting capstan double acting click double acting compression double-acting compression doubleacting compressor double acting compressor double acting cylindrical double acting damper double-acting damper double acting die double acting diesel double-acting diskharrow double acting dobby double acting door double-acting door double-acting double piston rod oil cylinder double-acting duplex slush pump double acting engine double-acting engine double acting feeder