单词	thrusters
释义	同thruster
随便看	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 narrow beam transmitter narrow bed narrow boards