The pre cured tobacco leaves of growing and ripeness do not contain TSNA, and they are formed and accumulated during curing, aging after harvesting.
大田正常生长及成熟的青烟不含TSNA，是采收后在调制、贮存陈化过程中逐步形成和积累起来的。
The grapes are handpicked after being tasted for their ripeness, they are then destemmed and put on a sorting table where they are sorted by hand.
果实皆在品尝检测过成熟度 后方才全部手工摘取，然 后去梗放在 输送带上手工再次手工过滤拣选。
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