对高能区域做了计算和讨论。
Detailed calculations are performed and the results are discussed.
“通常情况下，除了超晶格活跃区域，量子级联激光器设计只有一个高能态，”论文第一作者藤田一惠（Kazuue Fujita）在电子邮件采访中告诉PhysOrg.com。
“Usually, quantum cascade laser designs have only one upper state, except for superlattice active region, ” Kazuue Fujita, the lead author on the paper, tells PhysOrg.com in an email interview.
这些禾草的专长是将阳光转化为富含淀粉的草本组织；这种富含高能量的草料能长到6米高，且覆盖了很大的一片区域。
Their specialty is converting sunlight into nonwoody tissues loaded with starch; that is, into vast fields of high-energy food—fields that grow 20 feet high.
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