科学家已证实胆固醇含量与心脏病之间有关联。Scientists have established a connection between cholesterol levels and heart disease.警方怀疑那两桩凶杀案可能有关联。Police suspect there may be a link between the two murders.物理学与天文学是互有关联的科学.Physics and astronomy ...
Power divider is the indispensably part, this paper designs microstrip power divider, equational and not equational.功分器是阵列天线馈电网络不可缺少的部分, 本文设计的是微带功分器, 有等分和不等分的....