The Frequency Shift Keying modulation is widely used in HF digital communication.移频键控是短波数字通信中常用的一种调制方式.Her sister carried with her most of the grimness of shift and toil.她姐姐身上还带着艰辛操劳的痕迹.Before deselecting shift the selec...
a pair of culottes一条裙裤Itis suitable for sewing underwear, tights, underskirt. culottes, etc.适用于缝制内衣裤 、 紧身衣 、 衬裙 、 衬衣、裤裙等之产品.The culottes are very beautiful and look like a skirt at a distance.这条裤裙很漂亮,远看就像裙子一样....