应该是专有名词什么的
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S&H Shipping and Handling 运费及手续费

S&H Safety & Health 安全与健康

S&H Science and Health (Christian Science religion) 科技和健康

S&H Sample and Hold 取样和维持

S&H Sperry & Hutchinson (of S&H Green Stamps)

S&H Strachan & Henshaw (Bristol,UK engineering company)

S&H Strength & Honor 力量与荣誉

S&H Steelton & Highspire Railroad Company