无线电装置

• It is hard to track blue whale , the ocean ' s largest creature , which has almost been killed off by commercial whaling and is now listed as an endangered species . attaching radio devices to it is difficult , and visual sightings are too unreliable to give real insight into its behavior
  追踪蓝鲸是相当苦难的,她是海洋中最大的生物,由于商业捕鲸几乎所有的鲸鱼被杀光而成为现在名单中一个将要绝种的物种.对鲸鱼系上无线电装置是很困难的,而眼前所看到的太不可靠而无法对鲸鱼生活状态给于真实的了解