In 1987 when Discovery Channel's now-famous Shark Week series debuted, researchers had few means of studying the animals beyond underwater cages and crude acoustic tracking devices.
It is not a practical grammar by any means-when building an acoustic model from grammars as small as this, you soon run into problems regarding insufficient samples.
无论如何它不是一个实际的文法—通过这么小的文法构建语音模型时，您很快就会遇到样例不够的问题。
3
They should have used other means to shake off the pirates, like a loud acoustic device.