Coronary angiography showed single - vessel disease in 4 cases, double-vessel disease in 21 cases, triple-vessel disease in 90 cases, single LM disease in 13 cases.

选择性冠状动脉造影示：单支血管病变4例，双支血管病变21例，三支血管病变90例，单纯左主干病变13例。

youdao

And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.

而我们以后还会看到三键，举例来说，应该更强，相较于相应的双键,或者相应的单键来说。

麻省理工公开课 - 化学原理课程节选

I just showed you that you can have a single wave, a double, a triple and so on.

我想说的是你能得到单个波，双波，三条波等等。

麻省理工公开课 - 固态化学导论课程节选

So, in general what we see, and this is always true if we're comparing the same atom, and in general, if we're comparing different types of molecules, but we know that a single bond is always weaker than a double bond, which is weaker than a triple bond.

通常我们会看到，这对比较相同原子来说总是正确的，通常，如果我们要比较不同种类的分子，但我们知道单键,总是要比双键弱，双键总是要比三键弱。

麻省理工公开课 - 化学原理课程节选

Now you can buy a Google Mini search appliance like a cheeseburger--single, double or triple.

FORBES: Magazine Article

He says apprehensions here are down 95 percent, from 100, 000 a year to 5, 000 a year, largely because the single strand of cable marking the border was replaced by double and in some places, triple fencing.

NPR: San Diego Fence Provides Lessons in Border Control