When and how does frost pose a risk to grape production? Evaluate the different methods of frost protection available to the grape grower.
“霜冻”何时会给葡萄生产带来何种危险？请评估葡萄酒农可采用的不同类型的霜冻防护方法。
When and how does frost pose a risk to grape production? Evaluate the different methods of frost protection available to the grape grower.
“霜冻”何时会给葡萄生产带来何种危险？请评估葡萄酒农可采用的不同类型的霜冻防护方法。
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