It's also the ratio of a circle's circumference divided by its diameter.

它也是圆周除以直径的比率。

Round the circumference with the back of a knife.

用刀背绕圆周敲击。

It's wider, or more technically, has a greater circumference at the Equator.

它更宽，或者更严格地说，在赤道有更大的周。

To them pi is the ratio of a circle's circumference to its diameter.

对他们来说，π 是圆的周直径之比。

Using this, he actually measured the circumference of the Earth, and he got it right 2,000 years ago.

利用这些，他准确地测量出地球的周，并在2000得到了正确的数据。

In the simplest definition, pi is the ratio of a circle's circumference to its diameter.

在最简明的定义中，π是圆周直径的比率。

Circumference over diameter! 7,9 then 3,2,3.

周看直径！7，9然后3，2，3。

It measured four to five miles in circumference.

它周围四海里至五海里。

That involves a constellation of symptoms, including high blood sugar, increased waist circumference, and high blood pressure.

代谢综合征有许多症状，包括高血糖，变大的腰围，和高血压。

Head circumference is normal for size.

头围大小正常。

Unlike an adventure round the circumference of the Earth.

不像沿着地球圆周进行的冒险。

One thing that's more reliable than BMI or weight to get at specific health issues is waist circumference.

在特定的健康问题上，有一件事比体重指数或体重更可靠，那是腰围。

Oh. All right. What is the circumference of your areolas?

好 我懂了 你的乳晕的圆周为多少？

First, researchers took the circumference of 61 men's and women's biceps, measured their grip strength, and their height.

首先，研究员测量了61名男女肱二头肌的周，以及他们的握力和身高。

The ratio of the circumference of a circle to its diameter.

圆周直径之比。

Met! True art thou, lad, as the circumference to its centre.

握一握！孩子，你真像圆周对圆心一样忠诚。

Oh my god. The circumference of the femur is over a foot.

我的天啊。股骨周超过一英尺。

It is used for the ratio of the circumference of a circle to its diameter.

pi代表着圆周到直径的比例。

721. The recruit made the current circulate in the circuit on the circumference.

新兵使电流在圆周上的电路中循环（传播）。

I mentioned that these thigh bones were 30 centimeters, a foot in circumference.

我提到过，这些大腿骨的周是30厘米，也是一英尺。