This paper dissects the process to analyse arsenic in test method and operative skills.本文从实验方法、操作技巧等方面剖析了砷测定方法的机理.This paper dissects the above - mentioned factors, and proposes the corrected Stokes formula and its appli...
A wisp of smoke is curling up from a chimney.炊烟旋绕.A wisp of grey hair stuck out from under her hat.从她的帽子下边露出一绺灰白的头发。She smoothed away a wisp of hair from her eyes.她将眼睛上的一缕头发拨开。It burns as a will - o'- the - wisp , d...