Based on Greek letters, the names are simple and easy to remember.

这些以希腊字母命名的名字简单、易记。

So forecasters are using Greek letters like Delta and Gamma to identify the new systems.

因此，天气预报员使用“德尔塔”和“伽马”这样的希腊字母来命名新风暴。

And Delta could become the first hurricane with a Greek letter ever recorded to strike the United States.

“德尔塔”可能成为有史以来第一个袭击美国的以希腊字母命名的飓风。

So this is the capital Greek letter sigma right over here, it's shorthand math, math shorthand for sum.

这是大写的希腊字母，它是数学中总和的简写。

Sometimes someone will write the actual Greek letter chi here.

有时有人会在这里写下实际的希腊字母 chi。

Most fraternities and sororities have names that use Greek letters.

大多数兄弟会和姐妹会的名字都使用希腊字母。

You have all these Greek letters there.

你那里有所有这些希腊字母。

The other, which aims to explain dark energy, is known by the Greek letter Lambda.

另一个旨在解释暗能量的理论以希腊字母 Lambda 命名。

The oldest known example ever uncovered which used the symbol in place of the Greek letter A in the word " Amen" .

有史以来发现的最古老的已知的使用这个符号例子是替代“阿门”一词中的希腊字母 A。

Remember, our true mean is this, that the Greek letter mu is our true mean.

请记住，我们的真实意思是，希腊字母 mu 是我们的真实意思。

That's its coefficient of volume expansion -- represented by the Greek letter beta.

什么程度的人声膨胀...女演员 带有希腊字母 beta。

So this is the Greek letter mu, and we put this k here for kinetic, or we can kind of say moving friction.

k表示" 动" (kinetic)该系数等于摩擦力的大小。

The World Meteorological Organization decided that the Greek alphabet was too confusing and even more confusing when a Greek letter needed to be retired.

世界气象组织认为希腊字母太容易混淆了，尤其是在希腊字母需要退役时。

The variance of a population-- and it's this Greek letter, sigma.

总体方差——就是这个希腊字母 sigma。

As new variants of concern and of interest are identified, the WHO said it will work with experts to name them after Greek letters.

世卫组织表示，随着新发现" 应关注变种" 和" 待观察变种" ，他们将与专家合作采用希腊字母为其命名。

And just so you know how to use this-- you're like, oh, wow, there's so many Greek letters here.

只是为了让你知道如何使用它——你会想，哦，哇，这里有这么多希腊字母。

This is the Greek letter chi, although it looks a lot like a curvy X. So it's a member of chi-squared.

这是希腊字母 chi，虽然它看起来很像弯曲的 X。所以它是卡方的成员。

Meteorologists announced this year that if the 21 original names get used up, a supplemental list with more names will be used instead of the Greek letters.

气象学家今年宣布，如果21个开始选出的名称被用完，将使用补充名单上的名字，而不用希腊字母。

The only other thing that the change in length depends on is that coefficient of linear expansion, represented by the Greek letter alpha.

唯一的其他变化取决于 长度是线性膨胀的程度，用 alpha 表示。

The stars in any constellation are given Greek letters in order of their brightness, so we have Alpha Orionis, the brightest star in Orion, then Beta, and so on.

任何星座的星星都是用希腊字母排序的，所以我们有猎户座α星（最亮的一颗），然后是β星，等等。