Such algal blooms are not only harmful to people and animals but can also trigger dead zones in the lake-areas in the water so devoid of oxygen that they cannot support aerobic life.
这种水藻大爆发不仅会对人畜造成危害还会在湖水中制造死亡区域——水中的一片区域会因为氧气匮乏而完全不能供有氧生物生存。
Dead zones form when big blooms of phytoplankton at the surface trigger large quantities of organic matter, which then sink to the bottom.
当水面上大量爆发的浮游植物触发产生大量的有机物质，而这些有机物质随后下沉到水底的时候，死亡带就形成了。
The threshold detector is similar to a Schmitt Trigger in that it is a latch circuit with a large dead zone.
阈值检测器就是一种回差范围较大的锁存电路，与施密特触发器相似。
International standard five-bolt structure: With the prying-resistant trigger bolt and indoor locking dead bolt for security and the mechanical key for emergency access;
国际标准五锁舌结构：有防撬保险舌和室内反锁大方舌，具机械钥匙应急开门；
International standard five-bolt structure: With the prying-resistant trigger bolt and indoor locking dead bolt for security and the mechanical key for emergency access;
国际标准五锁舌结构：有防撬保险舌和室内反锁大方舌，具机械钥匙应急开门；
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