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【编者按】中烟与菲·莫技术合作开发优质烟叶的工作已进行了4年，为我们更新观念，统一认识，澄清一些技术问题提供了很多宝贵经验。特邀此文，以飨读者。中国烟草总公司与菲利浦·莫里斯中国集团有限公司技术合作开发优质烟叶的工作，从lop年开始到1999年底已进行了4年。4年?
[Editor’s note] The cooperation between China Tobacco and Philip Morris Technologies to develop high-quality tobacco has been under way for 4 years, providing us with many valuable experiences in updating our concepts, unifying our understanding and clarifying some technical issues. Invited this article to readers. China Tobacco Corporation and Philip Morris China Group Co., Ltd. technical cooperation and development of high-quality tobacco leaf work, from lop year to the end of 1999 has been carried out for 4 years. 4 years?