同时对4种农药在茶树上的田间自然降解动态和农药在茶叶加工过程中的降解率进行了研究。
At the same time, the natural degradation dynamics of 4 pesticides on tea new shoots as well as the degradation rate of 4 pesticides during oolong tea processing were studied.
因此，保持加工场所的清洁卫生和调整揉捻机揉筒和揉盘的金属组成是降低茶叶加工过程中铅和铜污染的有效途径。
Therefore, keeping clean in workshop and regulating the metal constitution of rolling machine could reduce the Pb and Cu pollution during tea processing.
两种茶叶都产自同一种茶树；其区别是茶叶的加工过程不一样——绿茶在烘干前没有进行发酵。
Both teas come from the same plant; the difference is the way the different teas are processed. The green tea in not fermented it has been dried.
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