But a great deal of work has been done beforehand in the way of product development, market research, test marketing and so on.
但是，有关产品开发、市场调研、试销等方面的大量工作事先都已经做了。
The Nielsen BASES System is the world leader in simulated test marketing (STM) for new and existing consumer packaged goods brands.
NielsenBASES系统在消费包装品模拟试销（STM）方面处于世界领先地位。
Stella Li, BYD's senior vice president also said the company plans to start test-marketing an all-electric battery car in the US next year.
李柯还表示，公司计划明年起在美国试水纯电动车。
Stella Li, BYD's senior vice president also said the company plans to start test-marketing an all-electric battery car in the US next year.
李柯还表示，公司计划明年起在美国试水纯电动车。
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