for draft beer the pre-condition is the proper temperature,pressu_英语解答

for draft beer the pre-condition is the proper temperature,pressure ...
for draft beer the pre-condition is the proper temperature,pressure and control if co2 in the barrel or
应该是control of

人气：212 ℃　时间：2020-03-26 09:17:23

解答

对于扎啤(或生啤),适当的温度和压力,加上酒桶内二氧化碳的控制是先决条件.
barrel和keg 都是酒桶；Barrel 大些,Keg小一些.