The researchers used a focusedbeam of caesium ions to dislodge molecules of water from the inclusions and measured the amount with a mass spectrometer.
研究人员用聚焦的铯离子束将水分子自包裹体中打出并用质谱仪测量其数量。
2
"The high frequencies make the bats' sonar beam very focused and short-ranged, " he said.
“高频率声波使得声音束很集中，周期很短。” 他说。
3
It works by cooking the uranium and its daughter products, called transuranics, with a focused proton beam.