double roping的相关资料：
临近单词
doubleknit
double
double horizontal shaft forced mixer
double continuous cropping late rice
Double satellites positioning system
double helical double reduction unit
Double-door expansive laminoplasty
double lift double cylinder jacquard
double maintainable two lines method
double closed loop speed-governing
double-stand heavy plate mill line
double-barrelled and tubed pipette
