[; ]the number of customers, amount of resources, etc. needed to allow a business, an industry, etc. to make a profit and continue without outside help 关键量（指企业、行业等在不靠外界的帮助下获得赢利并持续发展所必需的顾客人数、资源数量等）◆We need five or six stores to achieve critical mass. 我们需要五六家店才能达到实现持续赢利的关键量。◆They lack critical mass in their core markets. 他们在核心市场未能实现持续赢利。⨁to achieve / create / have / reach (a) critical mass 达到／实现持续赢利的关键量