While the snakes rarely bite humans in the water , fishermen are struck occasionally when sifting through their trawls and have died from the bites of some species .

尽管在海里蛇很少咬人类，但有时蛇会攻击正在筛拖网的渔民，渔民因此死于一些蛇的咬伤。

On a sweltering summer sunday afternoon last month , I went to beijing 's houhai lake to see a vision of talent cultivation a world away from official trawls of rural schools .

上个月，在一个闷热的周日午后，我前往北京后海，观看一个与官方的乡村体校“拖网”机制相当不同的人才培育方式。

Licences for using large trawls and purse seines in marine fishing shall be granted upon approval by the department of fishery administration under the state council .

海洋大型拖网、围网作业的捕捞许可证，由国务院渔业行政主管部门批准发放。

It implements event detection software that trawls the twittersphere to identify hotspots of activity or emerging trends that match its client 's watchlist of topics , industries or companies .

它设置了事件检测软件，可以查阅整个Twitter圈（Twittersphere），来识别与其客户设置的监视名单上列出的话题、行业或公司相吻合的活动热点或新出现的趋势。