Meanwhile, the Drazin inverses of PQ and P - Q are established.同时, 给出正交投影的积PQ和差P -Q 的Drazin逆的表达式.Watch the spreads i . e. don't be bullish if inverses are narrowing.注意多空套做. 也就是说假如顺好在加大不要看多.Constant folding and const...
最初的河床质取样器有三种类型.Bed material samplers, as first developed , may be divided into three types.把深水取样器固定在直升机的试验台上.A depth sampler is strapped to the running board of the helicopter.吊篮和平盘式取样器加大了对水流的阻力.The basket and pan types ...
At dawn I woke him up and said we were leaving.黎明时分，我把他叫醒，告诉他我们要走了。I started work at dawn and returned only at nightfall.我披星戴月地工作。A breakfast will be served to those who last out till dawn!坚持到天亮的能吃上早餐！...
The 23-year-old's screams alerted a passerby who went to her rescue.那个23岁女孩的尖叫引来了一位过路人前去营救。Their curtains are perpetually drawn , so a passerby cannot peer inside.他们的窗帘遮得严严实实,外人难以看清内情.You are no longer a passerby in...
The Ukrainians speak a Slavonic language similar to Russian.乌克兰人所说的那种斯拉夫语系的语言类似于俄语。Over the years several similar theories have been put forward.几年来已经有好几个类似理论相继提出。The Casino, where she had often danced, had suffered a si...
经过3个周末的追求之后，帕梅拉接受了伦道夫的求婚。After a three-weekend courtship, Pamela accepted Randolph's proposal of marriage.你怎么样，伦诺克斯？很高兴看到你能下床走动了。How are you Lennox? Good to see you up and about.理查德·张伯伦已经同意接拍《荆棘鸟》的续集。Richard Chamber...
Many people were dependent for their water supply on this pestilential stream.许多人靠这条水质受污、可致疫病的河流来取水。As Jefferson said, cities are pestilential to the morals , the health, and the liberties of man.如杰斐逊所言, 城市“毒害了人类的精神 、 体和...