1. Baleen is a tough, flexible substance which comes from the mouths of some whale species.
鲸须是一种柔韧、易弯曲的物质，只能从某些种类的鲸的嘴上摘取。
2. In your day, whales supply two important resources: whale oil and baleen.
在你生活的那个年代，鲸可以为人类提供两种重要的资源：鲸油和鲸须。
3. Other baleen whale s are the blue, fin, gray, humpback, and sei whale s and the rorqual.
其它的须鲸有蓝鲸、鳍鲸、灰鲸、驼背鲸、鳕鲸和鲸。
4. But it is easier to hear the baleen whale, with its lower-frequency call, than the beaked whales, says Theriault.
但是，Theriault说，和喙鲸相比，须鲸发出的叫声频率更低，更容易听到它发出的声音。
5. baleen whale的意思
5. It is much deeper than a baleen whale would dive, says Clarke.
这比一般须鲸的下潜极限仍要深得多，克拉克说。
6. The only way to harvest whale oil and baleen is to hunt them at sea.
获取鲸油和鲸须的唯一方法就是到大海深处去猎捕鲸鱼。
7. danci.edu.pub
7. This is the baleen whale, the largest animal in the world.
须鲸的体重差不多等于二十只大象，然而这个海里的庞然大物仅仅依靠海生植物和小动物为生。
8. One group of whales has, instead of teeth, long strips of bone, hanging from their upper jaw. This is the baleen whale, the largest animal in the world.
有一类鲸鱼，用从上颚骨垂下来的长条状的骨头代替牙齿，它就是须鲸，是世界上最大的动物。
9. baleen whale
9. One group of whale s has, instead of teeth, long strips of bone, hanging from their upper jaw. This is the baleen whale, the largest animal in the world.
有一类鲸鱼，用从上颚骨垂下来的长条状的骨头代替牙齿，它就是须鲸，是世界上最大的动物。
10. Baleen traps prey when the whale expels water.
布赖德鲸通过排出水流就可以捕食猎物。