塑料会使精油降低效应，避免将精油直接滴在任何的塑料部分。
Plastic will reduce the effect of essential oils, to avoid any essential oil directly onto the plastic part.
更重要的是，我们首次推导得到了这种噪声降低效应发生的临界条件。
More importantly, the critical condition for the occurrence of the noise-reduction effect is given in our theoretical treatment.
套袋降低了甜柿果实内可溶性固形物和还原糖含量，以双层袋的降低效应较为明显。
All bags decreased the content of soluble solids and reducing sugar, the effect of double-layer bags was more obvious.
目的：研究一种以银杏叶、牛蒡根的提取液为主要成分的发酵食品对实验动物体重和脂肪积累的降低效应。
Objective: To study the effect of a fermented food (essential components: extract of ginkgo leaf and burdock root) for reducing weight and fat in mice and rats.
目的：研究一种以银杏叶、牛蒡根的提取液为主要成分的发酵食品对实验动物体重和脂肪积累的降低效应。
Objective: To study the effect of a fermented food (essential components: extract of ginkgo leaf and burdock root) for reducing weight and fat in mice and rats.
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