By using pot tests, the effect of low-P stress on dark sun-cured tobacco endogenous hormone and root activities were studied during different growth stage.
通过盆栽试验和室内分析，研究低磷胁迫对晒红烟内源激素和根系活力的影响。
I have a dark sun spot that I used to have to cover with heavy duty concealer.
我有一个晒斑，我以前都需要用很多遮瑕膏来盖。
I have a dark sun spot that I used to have to cover with heavy duty concealer.
我有一个晒斑，我以前都需要用很多遮瑕膏来盖。
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