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斯伦贝谢公司已买下美国的Danyl公司—美国最大的以预付磁卡或智能卡为基础的自我服务电子交易系统的生产商。斯伦贝谢在
Schlumberger has purchased Danyl Corp. of the United States, the largest manufacturer of self-service electronic trading systems based on prepaid magnetic cards or smart cards. Schlumberger at