Modern gymnastics were largely the creation of Friedrich Ludwig Jahn in the 19 th century.
现代体操运动大致上是19世纪一个名叫弗里德里希·路德维希望雅恩的人发明的.
However, the capacity of spinel manganic acid lithium fades rapidly in the charge - discharge cycle process.
但在充放电循环过程中,由于锰的溶解 、 电解液分解以及 Jahn -Teller效应等原因,尖晶石型锰酸锂的比容量衰减较快.
Jahn said, It was important for this team to get together precisely because so much work has been done.
来自VOA
But Jahn said it also offers opportunities to lessen their effects with known and proven farming practices.
来自VOA
Professor Jahn warns the window of opportunity to avert a humanitarian, environmental and climate crisis is rapidly closing.
来自VOA