The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.作者证实:单叶双曲面和双曲抛物面是直线曲面.Two fdmilies Of characteristic lines in the hyperbolic region are not orthogonal.在双曲型区域两族特征线互不正交.F...
We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议.China formally declared war against Japan in December 1941.中国在1941年12月正式对日本宣战。His declared agenda is to raise standards in schools, fortify ...
他正在为当天早些时候在节目中胜出而欢欣鼓舞。He was exulting in a win at the show earlier that day.他还在为别人批评他尽管最终胜出但表现笨拙感到闷闷不乐。He is still smarting over criticism of his victorious but clumsy performance.这是一种形象胜于语言的艺术。It was an art in which wor...
Gold rimmed spectacles bit deep into the bridge of his nose.金边眼镜深深嵌入他的鼻梁。Sue parked off the main street, with the van's nose pointing away from the street.休把小货车停在远离大街的地方，车头背对着大街。She's got funny eyes and a big n...