At this point, the bacteria on the nitrocellulose paper remain invisible.
此时，硝化棉纤维纸上的细菌仍旧不可见。
Our vision is to manufacture the highest quality nitrocellulose with a cost competitive basis.
我们的理想是以竞争性的成本制造出最高品质的硝化棉。
Our vision is to manufacture the highest quality nitrocellulose with a cost competitive basis.
我们的理想是以竞争性的成本制造出最高品质的硝化棉。
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