[ 1斤装3个[送1个漏斗] ]
[ 3斤装3个[送1个漏斗] ]
[ 5斤装3个[送1个漏斗] ]
[ 1斤+3斤+5斤[送1个漏斗] ]
[ 1斤装6个[送2个漏斗] ]
[ 3斤装6个[送2个漏斗] ]
[ 5斤装6个[送2个漏斗] ]
[ 1斤2个+3斤2个+5斤2个[送2个漏斗] ]