例句與造句

1. The spallation neutron source providing the most intense pulsed neutron beams in the world is being built in tennessee by the u . s . department of energy
   美國(guó)能源部正在田納西州建造世界上最強(qiáng)脈沖中子束的散裂中子源。
2. It's difficult to find pulsed neutron beam in a sentence. 用pulsed neutron beam造句挺難的