单词	钻头磨机
释义	钻头磨机drill sharpener
随便看	narrow base narrow base photodiode narrow base tyre narrow beam narrow--beam narrow-beam narrow-beam absorption narrow-beam absorption coefficient narrow-beam antenna narrow-beam attenuation narrow beam condition narrow-beam echo sounder narrow beam equation narrow beam geometry narrow-beam geometry narrow-beam geometry technique narrow beam projector narrow beam pulse narrow-beam radiation narrow beam radiogoniometer narrow beam scanning radar narrow beam sounder narrow beam sounder {=nbs} narrow-beam transmission narrow-beam transmission factor