单词:invariants
n. 不变量
n. a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it
s. unaffected by a designated operation or transformation
单词:invariants 相关文章
Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty sleeping can plague those visi
This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will take a minute. For those of you who love a tall tale, the list of genetic variations that determine human height has just experienced a growth spurt. The findings were publish
You cant judge a book by its cover. But you can judge a dog by its coat. You can even read right through to its genes. Because a study in the August 27th online issue of Science shows that just three key genes govern the length and texture of dog fur
The Bird Flu Recently , the news has been filled with reports of the “bird flu.” Asia is on a region-wide health alert, with governments slaughtering millions of chickens to contain 1 outbreaks
为新猫咪做准备 Take a good, hard look around your house. You might think that there is nothing dangerous for Kitty to go sticking her nose into, but you would be wrong. Everyone knows that cats are instinctually curious. Places humans overlook
A research team led by Professor Ye Kai from Xi'an Jiaotong University has detected the existence of dark matter in human genomes, including novel forms of complex variants that have never been observed before, Xi'an Daily reported on Oct. 10. 据《西
This is Scientific American 60 science, I am Charles Q. Choi! Psoriasis is an autoimmune diseasethe immune system mistakenly attacks its own body, causing red, itchy, scaly patches on the skin. But there may be a hidden upside. People with psoriasis
It's no secret that good genes can explain why some people age well. But researchers said last Thursday they have identified a specific gene variant that can make people look about two years older than their actual age. 众所周知,有些人看起来
Scientists Creating New Devices to Battle Diabetes 科学家发明新型对抗糖尿病装置 In general, people around the world are eating better and living longer, but they are also moving less. This is contributing to the rise of diabetes, a cond
Scientists say they have made a leap in knowing why some people retain their youthful looks while others age badly. 科学家称他们已经在探究为什么有的人青春长驻而另一些人逐年老去这一问题上取得突破性进展。 They
British English may have come first, but around the world, the American way of spelling is now far more popular. 英式英语出现的较早,但从全球看,现今美式英语的拼写方式却更受欢迎。 A recent examination of these two var
克里姆林宫决定斯诺登的未来 MOSCOW, June 30 (Xinhua) -- As Edward Snowden has been perching at an international airport of Moscow for a week, Kremlin said Sunday the former CIA contractor's future was not yet on its agenda. The President
A new report has revealed that Apple plans to launch three handsets this year - two will be updates of the iPhone 7 family and the third is the 10th-anniversary handset -- iPhone 8. 一份最新报告显示,苹果公司计划今年推出3部手机-
A shortage of genes could be to blame for the lack of height in short people, researchers have found. Two studies involving 12,000 people has been carried out in America and found a link between the amount of missing genetic material and a decrease i
WASHINGTON, March 15 (Xinhua) -- Mothers who are overweight or obese during pregnancy are more likely to give birth to bigger babies, new research suggested Tuesday. The study, published in the Journal of the American Medical Association, also found
Transporter of delight 传递快乐的使者 Happiness is in your DNA; and different races may have different propensities for it 基因决定幸福;而不同种族的幸福倾向不尽相同 Born smiling? 天生会笑? THE idea that the human pe
A new study from researchers at the University of Exeter found that short men and overweight women earn less than those who are taller and slimmer. Published in the British Medical Journal, the study involved genetic data from almost 120,000 people a
U.S. President Barack Obama wants to invest $215 million into a new health initiative that would help tailor medical treatment to an individual's genetic make-up. 奥巴马总统提议向美国一项新的基因研究计划投资2亿一千五百万美元
Why a marriage contract and not any other reason for regular annual action? 为什么是一纸婚书而不是其他什么原因使普西芬妮定期往返呢? Here is one. Persephone wasn't released. 我且来举个例子:普西芬妮并没有被放
Business 商业报道 Civilian jet engines 民用航空发动机 Gearing up for a fight 奋力一战 Pratt amp; Whitney hopes a high-tech engine will restore its former dominance. 普拉特惠特尼公司期待其新款的高科技航空发动机能重