varia

方差和标准差都是统计学的术语方差的英文是variance,标准差是Standard Deviation方差（variance）是在概率论和统计方差衡量随机变量或一组数据时离散程度的度量。概率论中方差用来度量随机变量和其数学期望（即均值）之间的偏离程度。统

After launching nearly a dozen Echo speaker models in India in two years, Amazon said on Wednesday it is adding a new variant to the mix that addresses one of the most requested features from customers in the nation: por

Vendors and liquor connoisseurs have gathered in Oaxaca to kick off the 19th international fair of the popular relative of the Mexican tequilathe mezcal.The fair, which showcased variations of the artisanal distilled dri

含水量的英文：moisture content参考例句：The unsaturated equations may be written with moisture content and potential as the dependent variables.可以把含水量和势作为应变量来写非饱和方程。Critical moisture content临界含水

恒定的英文：invariablenes参考例句：For instance I can instantly know the constant distance.例如我可以即刻知道该恒定间隔。The glomerular filtration rate remains relatively constant肾小球滤过率也能保持恒定。The constancy o

宏观调控目标的英文：macro-control targetsmacro是什么意思：n. 宏，巨adj. 巨大的，大量的；微距的Save the macro.保存这个宏。The macro creates an array of variables.该宏创建了一个变量数组。He photographed this using a macro

七人制橄榄球（Rugby-sevens）七人制橄榄球为IRB主管下的赛事，为联合式英式橄榄球（Rugby-Union）中的一种赛制，与传统15人制联合式橄榄球（Rugby-Union）相似。（Rugby-sevens,also-known-asseven-a-sideorVIIs,is-a-variant

VP是什么意思VPabbr.1. =variable pitch 【机】可变螺距2. =verb phrase 动词词组3. =vice-president 副总统;副主席

人患猪流感human cases of Swine Flu 猪流感病毒 the H1N1 swine flu viruses H1N1 抗原变体antigenic variant 抗原变异 antigenic variation 抗原飘移 antigenic drift 抗原位移 antigenic shift 从病毒中获取遗传物质 scrambling/acqui