水分保持剂-简介 水分保持剂是 (Humectants)，水分保持剂指在食品加工过程中，加入后可以提高产品的稳定性，保持食品内部持水性，改善食品的形态、风味、色泽等的一类物..
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石墨是很好的减速剂，减慢中子并且让它们的反应保持在一个适当的温度范围内。
Graphite is a great moderator, slowing down the neutrons and keeping their reaction in the proper temperature range.
如果你是倚赖兴奋剂去保持清醒或者保持敏捷，那么试着去做一些日常活动，开始一个自然的提升。
If you generally rely on stimulants to stay awake or be more alert, try to change a few daily activities and get a natural boost.
据悉，菲尔普斯是12个向“我的胜利”倡议（去年由美国反兴奋剂机构发动，旨在保持竞技体育纯净性）做出承诺的奥运健儿之一。
Phelps is one of 12 Olympic athletes who pledged to "My Victory," an initiative launched last year by the U.S. Anti-Doping Agency aimed at keeping competitive sports clean.
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