a laser beam的用法和样例：
- How does a laser beam vaporize steel?
- That tower rays a laser beam for miles across the sky.
- The high intensity of a laser beam makes it a convenient drill.
- They split a laser beam in two, sending one half to a sample.
- The high intensity of a laser beam makes it a convenient drill .
- The diamond segment and the steel core are fused together by a laser beam.
a laser beam的相关资料：
aquoll a a giant screen with statements A provision for doubtful debts A System Grappling With Reform a dialect of Middle English. A plant of microscopic size. a deepening economic recession a little less than one-third a moderately successful career A turning or twisting force. A man of distrustful nature.