英语语法分析

Actinides are synthesized very quickly in such environments as supernova explosions.

锕合成很快，在这种环境下，因为超新星爆炸。

Actinides are synthesized very quickly in such environments as supernova explosions.

锕合很快，种环境，超新星爆炸。

Rare earths, also called lanthanides, are chemically similar to actinides (89 through 104).

稀土元素也称镧系元素，化学性质与锕族元素(89到104)相似。