更多protium例句

1. Nor did he possess any great knowledge of the protium mines, for he had never visited them.
2. I was immediately installed in my new office, as Director of the Protium Works.
3. I was prevented from doing this immediately by difficulties in the Protium Works.
4. We had supposed you would have been told when you were assigned to the protium research.
5. That is one reason I am so interested in this protium on which you chemists are working.