So he flies in three times a month , over the sawtooth mountains , to see patients .
所以他每月要三次飞越锯齿山去看病人。
But china 's sawtooth markets are more jagged than those in the west .
但中国股市的波动比西方更为剧烈。
Kin hung fung , an mit postdoc and co-author of the nano letters paper , says , " what we have done is to design a multilayer sawtooth structure that can absorb a wide range of frequencies " with an efficiency of more than 95 percent .
Stars of the discovery channel documentary " living with wolves , " the dutchers spent six years with a wolf pack in an enclosed wilderness habitat within idaho 's sawtooth mountains .
