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1·If you are using an older version of the NTR, then uninstall it now.

如果您使用的是旧版本的NTR，然后卸载它了。

2·Practice shows that NTR-759 is a reverse osmosis membrane with excellent performance and can be used for ultrapure water production.

实际应用表明，NTR - 759是一种性能良好的反渗透复合膜，可广泛应用于高纯水的制备。