That's because very large animals have a slow rate of reproduction, so all you have to do is remove a few young females from the herd, and you can, fairly quickly, significantly reduce the population.

那是因为大型生物的繁殖速度十分缓慢，所以只要除去象群中的几头年轻的母象，它们的数量就会大幅的下降。

Dry matter accumulation showed a s curve at a slow-fast-slow rate.

干物质积累呈“S”型曲线，符合“慢-快-慢”的增长规律。

It has now started to decline slowly, andis likely to continue to fall at a slow rate.

其现在已经开始下降，并且有可能继续慢速下降。

Pillow lavas form when molten rock is pushed up onto the seafloor at a very slow rate.

枕状熔岩是岩浆被缓缓推积至海底时形成的。

The number of algorithms in each category is limited and new ones emerge at very slow rate.

每一类算法的个数都有限，而且新算法出现的很慢。