量子效率 [电子] Quantum efficiency ; quantum yield
电子效应 [化学] electronic effect ; electron effect ; stereoelectronic effect
同离子效应 common ion effect
外量子效率 EQE ; QEext
表观量子效率 AQY ; apparent quantum yield of photosynthesis
离子效应 ion effect
外部量子效率 external quantum efficiency
粒子效果 Particle Effects ; PARTICLES ; Particle Effect
他的第一个减税法令于1981年8月生效,一揽子减税计划也包括边际税率的削减,最高税率由70%降低到50%,最低税率由14%降低到11%。
His first tax bill was enacted in August 1981. It included a sweeping cut in marginal income tax rates, reducing the top rate to 50% from 70% and the lowest rate to 11% from 14%.
分子结构表征是定量构效关系研究的一个关键环节,结构描述子能否反映分子与生物活性相关的结构信息,决定了定量构效关系研究的成败。
Structural description is a key step in the QSAR studies. Whether the structural descriptors can reflect the structural variations determines the success of QSAR studies.
这套理论目前看来还算凑效:第一、困扰其它种种量子引力理论的“无限解”症结终于得到缓解; 第二、自然而然衍生出一个“驯服”的引力子。
So far it seems to be working: the infinities that plague other theories of quantum gravity have been tamed, and the theory spits out a well-behaved graviton.
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