然后将A和B在氮气下进行预反应，的翻译：And then will be carried out under a and b in the nitrogen reaction, 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Then a and b in the pre-reaction under nitrogen,

And then will be carried out under a and b in the nitrogen reaction,

Then carries on A and B under the nitrogen the pre-response,

And then will A and B Under nitrogen in early warning and response

And then will be carried out under a and b in the nitrogen reaction,