Then I can actually -- --replace the line integral for flux by a double integral over R of some function.
那么我就能名正言顺地,用R上的某个函数的二重积分来替代通量的线积分。
Raul Slough Lewis signs in addition to double-R, there is the famous trapeze signs.
劳尔斯·劳易斯的标志除了双r之外，还有著名的飞人标志。
One way round that is to double the “r”, producing words like “Rromani”.
一个解决办法是双写字母“r”，发“Rromani”的音。
'This could be the longest slowdown since the double-dip recession of 1979-81,' said survey director John R. Graham, who is a finance professor at Duke's Fuqua School of Business.
调查负责人、杜克大学福库商学院(Duke' s FuquaSchool of Business)金融学教授约翰·格雷厄姆(Johnr . Graham)表示，目前可能是美国经济自1979- 81年出现二次衰退以来最长时间的经济疲软。
So, that means that the double integral for flux through the top of R vector field dot ndS becomes double integral of the top of R dxdy.
这就是说通量的二重积分,顶部R•ndS的二重积分,变成了Rdxdy的二重积分。
So, we'll call that the double integral of our region, R, of f of xy dA and I will have to explain what the notation means.
称之为区域R上fdA的二重积分,会向大家解释这些符号的含义的。
Two recent books give them double billing: historian David R. Contosta's "Rebel Giants" and New Yorker writer Adam Gopnik's "Angels and Ages."
最近出版的两本书对他们做了两份介绍：历史学家戴维德•R•考特斯塔的《叛逆的巨人》和纽约客作家埃德木•高坡尼克的《天使与时代》。
R This one is a double integral. So, if you are doing it, say, on a disk, you would have both R and theta if you're using polar coordinates.
不是变量，这是在一个圆上。，R，is，not，a，variable。，You，are，on，the，circle。,这个是二重积分，如果你们这么做的话，在圆盘上，如果你们用极坐标的话,就需要用到R和θ
Using cellulose (CF-11 ) chromatography a double stranded RNA was purified from the extract of R. sativus-root, termed E.
本实验用CF-11纤维素柱层析，从白萝卜提取物中分离纯化到一种双链RNA，简称E。
The double shell gas puff is applied extensively in Z pinch experiments because it can reduce R-T instability during the implosion phase.
双层喷气负载作为减小瑞利-泰勒不稳定性的重要手段，在Z箍缩实验中得到广泛应用。
Rolls-Royce double-R logo in addition, there are the famous trapeze signs.
劳斯莱斯的标志除了双R之外，还有著名的飞人标志。
SGK Double-over full automatic belling machine is specially used for belling of PVC pipes. belling type have straight type and R type.
SGK全自动扩口机是处理PVC塑料硬管扩口的设备，扩口方式为直扩口和r扩口两种形式。
Objective: To investigate a new methods for intubation while the failure of right-sided double-lumen tube (R-DLT) intubation in the thoracic surgery.
目的：评价一种右侧支气管双腔导管(- DLT)插管失败后行之有效的补救方法。
Extruder: it has adopted the famous brand speed-regulating systems, shielding double-pole mixed PP-R specialized screw and the cylinder which has channels in it.
挤出机：采用品牌调速系统，屏障型两极混炼pp - R专用螺杆，开槽机筒。
R-DOUBLE BAR: the average of the R-Bars, used in statistical process control.
双r型柱：r型柱状图的平均值，用于统计过程控制。
The company has domestic advanced double point production coating machine, with perfect r&d and testing equipment, has the production capacity of 15 million meters of finished product.
公司拥有国内先进的双点生产涂层机，拥有完善的研发和检测设备，具备年生产1500万米成品的生产能力。
The company has domestic advanced double point production coating machine, with perfect r&d and testing equipment, has the production capacity of 15 million meters of finished product.
公司拥有国内先进的双点生产涂层机，拥有完善的研发和检测设备，具备年生产1500万米成品的生产能力。
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