A policy of coordinating inventory by common replenishment periods for a kind of lot-for-lot supply chain is studied and analyzed.

研究弹性需求条件下，由单一供应商和单一零售商组成的直运型供应链通过共同补给期进行协调的问题。

youdao

As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded"Is there a doctor on board?'

作为一名经常出差的内科医生，我会在飞机上刻意留心那句可怕的“飞机上有医生吗？”

youdao

A lot of famous actors don't even notice the extras, but the ones who do make the job a lot of fun for everyone.

很多著名的演员甚至没有注意到临时演员，但那些临时演员让大家的工作变得很有乐趣。

youdao

Roland LeGiardi-Laura says life feels out of control for a lot of the children he works with.

VOA: special.2009.04.27

And it turns out-- a little teaser for our security discussion as time passes that a lot of the times when software is compromised and you download Photoshop like a cracked version of Photoshop or something like that.

这对于即将讨论的安全性问题来说,只是一个小插曲，随着科技的发展,很多时候，如果工具受损,你会下载到一个版本不全的,或其他类似的东西。

哈佛公开课 - 计算机科学课程节选

So let's compare what some of the similarities and differences are between hydrogen atom orbitals, which we spent a lot of time studying, and now these one electron orbital approximations for these multi-electron atoms.

很长时间的氢原子轨道和,现在多电子原子中,的单个电子轨道近似，我们可以对比，它们之间,的相似性和不同。

麻省理工公开课 - 化学原理课程节选

And, again, we talked a little bit about this yesterday, but a lot of coverage happened for just two weeks -- not a lot of coverage happened for something two weeks ago where the -- where a judge in a different district in the same commonwealth ruled and upheld the constitutionality of the very same provision that a judge ruled differently on yesterday.

WHITEHOUSE: Press Briefing

But to me and many people here today, like guys I see, Bill Bradley and Jim Sasser, who long left the Senate for greener pastures, and I hope better remuneration -- we used to kid about that, too -- but I -- for a lot of us, he was a friend, and he was a mentor and he was a guide.

WHITEHOUSE: Remembering Senator Robert Byrd

You know, you - this process for a lot of kids - I don't know if a kid who rolls out of bed one day in January to apply to college, you know, they've been working at it for sometimes over a year.

NPR: Ask Amy: Responding to the Thin Envelope