Top number indicates valve number, bottom number indicates valve size.

顶部的数字表示阀门编号，底部的数字表示阀门大小。

youdao

The second number is sometimes called the bottom number, or the diastolic pressure. It measures your blood pressure when the heart is at rest, between heartbeats.

第二个数字有时被称作低压或者舒张压，它测量了当心脏休息时在两次心跳之间时的血压。

youdao

Blood pressure and heart risk rose in step: for each 10 mm increase in diastolic blood pressure (the bottom number of the ratio), the risk of having heart failure in their 40s doubled.

血压和心脏风险上升步骤为：40多岁的风险性心力衰竭的人每10毫米增加舒张压(底部人数的比率)是正常人的一倍。

youdao

But here I'm doing the exact same thing except my number here 13 0 in the bottom in the denominator is 13.0.

但是这里我在做一个同样的计算,除了在下面的分母是。

哈佛公开课 - 计算机科学课程节选

That's bottom line number one, because if people are working, then they've got enough confidence to make purchases, to make investments.

WHITEHOUSE: Presidential Press Conference

Whatever bottom line number we end up with will be reported.

FORBES: Charity Eyes Quarter-Billion-Dollar Write-Down In Value Of Goods Handled

"There is a very large, wide-ranging investigation underway to try to get to the bottom of a number of issues, " Morrell said.

NPR: U.S. Weapons from Iraq Making Their Way to Turkey