所说具有铁磁性的加氢催化剂选自镍系非晶态合金、阮内镍或磁性载体负载的贵金属催化剂。
The ferromagnetic hydrogenating catalyst is selected from non-crystalline nickel alloy, Raney nickel or magnetic carrier loaded noble metal catalyst.
阮哈东仅用了两到三天就开发出了这款目前风靡全球的游戏，通过游戏内广告，这款作品每天可以为他带来5万美元的收入。
Dong Nguyen, who created the game in just two to three days, was making as much as $50,000 a day from the game's advertising revenue.
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