There are three deltaic types developed in lacustrine strata, i. e. , normal, braid and fan deltas, which consist of delta plain, delta front and front delta.

在湖泊中存在三种三角洲类型，即正常三角洲，辫状三角洲和扇三角洲。

youdao

If you are manufacturer of these products in the Pearl River Delta, kindly please contact us via E-mail with products pictures.

请生产厂家通过邮件方式与我公司联系（请提供产品照片）。

youdao

In other words, if the rise in instability is greater than the fall in stability, delta E this is a positive delta E.

换而言之，如果不稳定性的增加,大于稳定性的降低，将会有一个正的。

麻省理工公开课 - 固态化学导论课程节选

delta E What we do is ask ourselves what is the delta E?

我们做的是问问我们自己，什么是？

麻省理工公开课 - 固态化学导论课程节选

And what we say when we talk about the delta energy is I E 2 that this is going to be equal to i e 2, or the second ionization energy, or we could say the negative of the binding energy of a 2 s electron in b plus.

那么我们说,Δ，E，应该等于，或者说第二电离能，也就是正一价硼中，2，s，电子的,束缚能的负值。

麻省理工公开课 - 化学原理课程节选

Delta Air Lines said Friday morning it was considering the extension of a waiver issued this week to Boston travelers, "and of course, we'll work with customers on a case-by-case basis if they're not able to travel because of infrastructure challenges, " wrote Delta representative Morgan Durrant in an e-mail.

CNN: Boston transit shut down; airport open

The first to arrive is Adam Smith, who was a fellow Phi Delta Theta at the Massachusetts Institute of Technology before dropping out to start an e-mail search company, Xobni.

FORBES: Best Small Companies

For trainers who only want e-collar functions (and no BarkLimiter), Garmin offers the Delta in a basic configuration with three training configurations (instead of five) and half-mile range.

ENGADGET: Garmin announces new dog collars, talks up 'Bark Odometer'