在这里,指导性、实用性是教育信息服务必须具备的最基本的功能.Here the guidance and the usability are the most basic functions.从而得出滑爽类服装面料缝制配伍的指导性方案.The paper also provides guide scheme on coordinate sewing of smooth fabric.本论文的研究具有理论上的创新性和实践上的参考指导性.Th...
为什么不给所有的镜头都配上遮光罩呢？Why aren't all lenses supplied with a lens hood?因此我们得制作一块很大的遮光窗帘。We therefore had to contrive a very large black-out curtain.那网球裁判戴着遮光帽檐.The tennis umpire wore an eye - shade....