The only appreciable loss of niacin occurs when it leaches into cooking water .

当溶入烹调水中，仅烟酸的损失发生。

Experts say melamine sometimes accidentally leaches into the food supply in low levels , from things like plastic dinnerware .

专家说三聚氰胺可以通过象塑料餐具这样的物品以低量渗透进食物。

I like how apple sort of implies that it 's okay with these third-party leaches using itunes , but that it simply can 't support them .

我喜欢苹果这种暗示，你可以在这些第三方播放器上使用itunes，但这不被支持。

Dropping foods that are rich in water-soluble vitamins ( like the bs c folate ) into cooking water leaches some of the vitamins .

把富含水溶维生素（如维生素b簇，维c和叶酸）的食物扔到开水里煮，会溶解出一些维生素。

Despite periodic government efforts to promote less wasteful practices irrigation water still flows largely through dirt channels often choked with weeds . Much of it leaches into the ground before reaching crops .

虽然政府定期会宣传节约型耕种模式，但灌溉用水仍然大量流经常被杂草堵塞的肮脏渠道，其中大部分还没到庄稼地就渗入土里了。