[求助]怎样去理解“损伤阈值”

div/divdiv以下是一个外国客户提到的一个问题的中英文翻译。请各位前辈指点，到底是什么意思，“font size="2"损伤阈值”对应我们常规的数据是什么？谢谢！！！/font/divdivfont size="2"/font/divdivI would like to know the 'damage threshold' of thesebr/coatings,that is upto what energy levels these will not get damagedbr/Damage threshold is normally specified as 10MW/cm2 for 10 nsec pulse;br/10J/cmsq 8 nsec pulse; 1GW/cmsq for pulsed operation with pulse width ofbr/40 ns; 1GW/cmsq for CW, etcspan class="921095811-21112006"font face="Arial" size="2" /font/span/divdivspan class="921095811-21112006"font face="Arial" size="2"我想知道这些涂层的“损伤阈值”是多少？也就是指它不被破坏所能承受的最小能量值。/font/span/divdivspan class="921095811-21112006"font face="Arial" size="2"破坏基准通常是用10MW/cm2 10纳秒脉冲，font size="3"10J/cm2 8 纳秒脉冲， 1GW/cm2 /fontfont size="2"40纳秒宽脉冲操作，font size="3"1GW/cm2 for CW/font表示的，/font/font /span/divdivspan class="921095811-21112006"/span/divdivspan class="921095811-21112006"/span/div