The author summed up years of exasperation in one subheading : " does logic help ? "
作者总结了几年来的恼怒，在一副标题中写道：“逻辑有用吗？”
Only imports from least-developed beneficiary developing countries eligible for gsp under that subheading ( duty-free treatment )
产品在副标题下，并只限于从普惠制国家中的受惠发展中国家进口（零关税待遇）
Other tropical wood specified in subheading note 1 to this chapter , sawn or chipped lengthwise , sliced or peeled , whether or not planed , sanded or end-jointed , of a thickness exceeding 6 mm .
