Generally used as intermediate packaging method, between the inner packing and outer packing.
一般作为中档的包装方法使用，介于内包装与外箱包装之间。
I think the inner packing is good enough. And what about the outer packing?
我认为内包装还行。那么外包装怎么样？
The main feature of the machine is one-time packing for the inner and outer bag, avoiding hands directly contacting with stuff materials, improving the efficiency.
该机的主要特点是内外袋一次成型，避免了人手与物料的直接接触，提高效率。
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