例句與造句

1. But certain stars , called pulsars , give off regular pulses of radio waves
   但有些恒星，所謂的脈沖星，會有規(guī)律地發(fā)出射電波脈沖。
2. The sharp acceleration turns the traveling electron wave into a plane wave , like a nice regular pulse of an electron beam with an extremely short wavelength ? exactly the kind of beam useful for imaging
   急遽的加速會讓行進中的電子波轉(zhuǎn)變?yōu)槠矫娌?，就像一道波長極短的電子束所形成的有規(guī)律脈沖，完全符合造影所需。
3. Female courtship signal of the brown planthopper was made of many continuous regular pulses and male ' s signal was made of similar syllabics and had two types with different time domain characteristics . second male vibrational signal differed from male courtship signal with wide spectrum range and regular syllabics frequency . time domain characteristics of signals in different individuals even the same individual were different
   頻域特征分析知，褐飛虱雌蟲求偶嗚聲信號的頻域特性較穩(wěn)定，個體內(nèi)比個體間差異小；雄蟲求偶嗚聲信號s 、 e片段頻譜范圍較寬，但主振頻率比較接近，差異不顯著； m片段頻帶較窄，主振頻率mvf略小于s 、 e片段，變異較小； m片段脈沖重復(fù)頻率prf為幻
4. It's difficult to find regular pulse in a sentence. 用regular pulse造句挺難的