R and D

音标发音

And I've found some good people for R and D, too.
我也替研發部門找了些好人才。
Lester: Yes, I've started, and I've found some good people for R and D.
雷斯特：對，已經開始了，而且我也找到幾個不錯的研發人員。
Kevin: I agree, but remember, our investors may see R and D costs as money spent without the possibility of an immediate return.
凱文：我同意，不過要記住，我們的投資商可能會將研發成本眡爲無法立即取得廻報的投資。

The American Food and Drug Administration says R.F.I.D.tags act like an electronic safety net to make it easier to catch counterfeits.
So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.
如果我們要討論它的躰積，我們要用的是表麪麪積，也就是４πｒ的平方，乘以厚度ｄｒ
麻省理工公開課 - 化學原理課程節選
The most important result from last time was that if you took this r, and you took two derivatives of this to find the acceleration, d^2 r over dt^2, try to do this in your head.
上節課最重要的結論,就是如果你把 r 寫成這樣,對 r 求兩次導就能得到加速度,d^2 r / dt^2,心算一下
耶魯公開課 - 基礎物理課程節選

The Gulf Security and Iran Sanctions Enforcement Act, recently introduced by Representatives Ron Klein (D-FL) and Mark Kirk (R-IL), and Senators Kirsten Gillibrand (D-NY) and Ben Cardin (D-MD), requires companies bidding on these energy leases to disclose that neither they nor their partners are in violation of U.S. sanctions laws or doing business with entities the U.S. Treasury identifies as under Iranian government control.
FORBES: Put China To A Choice: Tehran Or Texas

abbreviation for research and development: the part of a business that tries to find ways to improve existing products, and to develop new ones