Scientists from the UK's Centre for Overseas Pest Research, evaluate mass trapping of the cotton leafworm.
来自英国海外害虫研究中心的科学家们对棉叶虫的大规模诱捕进行了评估。
With the instrument blowing and trapping to concentrate and sample and external standards, the gasoline in soil is determined quantificationally by gas Chromatography-Mass Spectrometry.
对土壤中的汽油，采用外标法，经吹扫捕吸仪浓缩后，用气相色谱-质谱法分析定量。
The results indicate: the effective mass of an acoustical polaron undergoes a sudden increasing when thee-p coupling constant achieves the critical value and then the self-trapping occurs.
结果表明：电子-声子耦合达到一定强度时声学极化子有效质量发生突变而使极化子自陷，声学极化子在二维系统中比三维条件下更容易自陷。
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