His social obligation compels him to make a round of visits.他的社会职责使得他不得不进行一系列访问。The research compels him to spread out into other fields.这项研究工作迫使他去钻研其他的学问.My health compels me to knock off work.我的健康问题使我不得不停止工作.Necessity,...
讨论了采用不同的电磁多极场作为动态校正器的可能性.推导了圆形校正透镜、偏转校正场和四极、六极校正场引起的附加象差的公式.The possibility of dynamic aberration correction by using electro - magnetic multipole fields is discussed....
While economists are free to theorise, company chairmen are concerned with actualities.经济学家们可自由创建理论,公司总裁们则关心现实情况。And also, the study actualities of SCM based on E - business is summarized.对 电子商务 环境下的供应链管理研究现状作了总结.This pa...