通过杂交培育出优良品系，再返植到森林，以保证山葡萄生产所需及山葡萄酒质量。
Such quality breed was then planted in forest to ensure grape quality for wild grape wine production.
宋河粮液酒质量风格特点的保证，其技术关键是：①优越的地理环境。
The key technologies which provide quality characteristics of Songhe liquor are: the excellent geographical environment;
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