signal

• Keep in visual signalling touch .
  保持在看得见信号的距离中。
• The signals are transmitted to the observation center .
  信号被送往观测中心。
• So they had bypassed the warning signal .
  因此他们没有让警报信号系统起作用。
• The magnetic signals are sensed by induction coils .
  磁信号由感应线圈所检测。
• The reflected signals come from the small inclusions .
  反射信号来自于少量杂质。
• It's a signal to them that'll sink in .
  这对他们是个信号，这个信号是会起作用的。
• Tip us a signal , if you can .
  有可能时，给我们个信号。
• It signals one of our cultural "blind spots" .
  它标志着我们文化中的一个“盲点。”
• Bleeding and diarrhea signal the onset of symptoms .
  出血和腹泻意味着症状的发作。
• The transponder automatically sends out a signal .
  发射机应答器便会自动发出信号。