Wallace says BFS became the first PC-farm-based airfare search and pricing engine in commercial use in April 2000, although ITA had a beta site at the time.
Wallace表示，2000年4月推出的BFS是第一个面向商业应用的计算机机票搜索和定价引擎，当时的ITA只有一个测试网站。
PC Series photo catalyst was used for photosensitizer in the farm PE film.
PC系列光敏催化剂用于快速降解农用地膜。
PC Series photo catalyst was used for photosensitizer in the farm PE film.
PC系列光敏催化剂用于快速降解农用地膜。
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