charmless

adj.

1. 无魅力的；无吸引力的；无趣的
   not at all pleasant or interesting
   1. a charmless industrial town
      一座毫无吸引力的工业城镇

1. ADJ-GRADED 乏味无趣的;没有魅力的
   If you say that something or someone is charmless, you mean that they are unattractive or uninteresting.
   1. ...flat, charmless countryside.
      毫无起伏变化的乏味乡间
   2. ...a charmless bully.
      毫无魅力的恃强凌弱者

1. The internet has made many interviews an increasingly formulaic and charmless ritual.
   互联网让许多面试变成了越来越公式化和无趣的仪式。
2. The study of the two-body charmless hadronic B meson decays is a very important task in particle physics and a challenging subject for both theorists and experimentalists, and hence the study has very important academic values.
   在B介子物理研究中，对B介子两体非粲强子衰变过程的研究有重要学术价值，是具有挑战性的课题。
3. Starting from the six-quark-diagram scheme and low energy effective Hamiltonian, we calculate the various Feynman diagrams in the charmless hadronic B-meson decays for the two body pseudoscalar meson final states within the framework of perturbative QCD.
   在微扰QCD框架下，利用六夸克图方案及低能有效哈米顿，对于两体赝标介子末态，给出了诱导B介子无璨弱衰变过程的不同费曼图的计算。
4. Based on the above work, using the QCD factorization approach, we present a detailed investigation for two-body hadronic charmless Bs meson decays to two vectors mesons.
   基于上述工作，在QCD因子化框架下，我们又对Bs介子衰变到末态为两个矢量介子的两体非轻无粲衰变过程进行了研究。