R and D

常見(jiàn)例句

And I've found some good people for R and D, too.
我也替研發(fā)部門(mén)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(duì)，已經(jīng)開(kāi)始了，而且我也找到幾個(gè)不錯(cuò)的研發(fā)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(guò)要記住，我們的投資商可能會(huì)將研發(fā)成本視為無(wú)法立即取得回報(bào)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體積，我們要用的是表面面積，也就是４πｒ的平方，乘以厚度ｄｒ
麻省理工公開(kāi)課 - 化學(xué)原理課程節(jié)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(jié)課最重要的結(jié)論,就是如果你把 r 寫(xiě)成這樣,對(duì) r 求兩次導(dǎo)就能得到加速度,d^2 r / dt^2,心算一下
耶魯公開(kāi)課 - 基礎(chǔ)物理課程節(jié)選

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