Double Barrel  复式岩心管; 双管枪

double barrel colostomy  憩室

double barrel electric hoist  双筒电动卷扬机

Double barrel graft technique  平行折叠技术

double barrel midship pump  双筒船中部抽水泵

double barrel panels  双管板

double barrel pump  双泵筒; 双筒泵

double barrel stirred up  双管正激

double double iron  八叠板

Double-barrel of Washing Machine  洗衣机双连桶

double-barrel separator  双筒分离器

four-barrel carburetor  四腔化油器

single barrel carburetor  单筒汽化器

single-barrel carburetor  单腔化油器

trip barrel carburetor  三筒汽化器

“double-seat double-vote” system  双议席双票制

ball mill with double-inlet and double outlet  双进双出钢球磨煤机

cationic double-chamber double-layer float bed  阳双室双层浮动床

COAL PULVERIZER WITH DOUBLE INLET AND DOUBLE OUTLET  双进双出磨煤机