Complicating this issue is that scientists are not certain how much mercury-tainted fish is needed to trigger health problems.
使这个问题复杂化的是，科学家们无法确定吃多少汞污染的鱼，才会触发健康问题。
Octopus, Clown trigger fish, Barracuda, Batfish, stunning healthy colourful coral reef, both hard and soft corals.
八爪鱼、小丑鱼，海狼，蝙蝠鱼，非常艳丽的珊瑚礁，硬软两种珊瑚。
The utility model can trigger the angling rod to rise in time to reduce the phenomenon of release when fish biting a hook.
本实用新型可及时触发渔杆的起钓，减少咬钩鱼脱钩的现象发生。
The first chapter of the book contains general husbandry information, with techniques for conditioning and bringing fish into breeding condition and the various ways to trigger breeding activity.
该书的第一章介绍了一般的饲养知识，包括调养到繁殖状态的技巧，触发繁殖行为的方式等等。
The first chapter of the book contains general husbandry information, with techniques for conditioning and bringing fish into breeding condition and the various ways to trigger breeding activity.
该书的第一章介绍了一般的饲养知识，包括调养到繁殖状态的技巧，触发繁殖行为的方式等等。
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