The part of the river where the colourful blooms occur is quite isolated and is not accessible by road.
在河的五颜六色盛开的地方发生相当孤立的一部分，而不是通过公路到达。
Toxic blooms also occur, albeit on a smaller scale, in bodies of freshwater—and that, Ms Hellawell thinks, is the answer to the mysterious case of Fossil Lake.
虽然规模较小，但在淡水水体毒藻疯长也会发生——因此，赫拉维尔女士认为这就是化石湖神秘事件的答案。
Such blooms do not occur when nitrogen or phosphorus or both are present in very limited amounts .
当氮或磷或两者存在数量很少时，不出现这种藻花。
应用推荐