They needed to change their flight path to take them around the moon and back toward Earth.

VOA: special.2009.07.22

Hess' Law states that for any chemical reaction, the energy change is path independent.

盖斯定律表明，对于任意化学反应，能量变化并非是路径依赖的。

麻省理工公开课 - 固态化学导论课程节选

I could change my external pressure through the whole process, and that's the path.

事实上外界压强,也不必固定。

麻省理工公开课 - 热力学与动力学课程节选

"That means protecting the rights of Egypt's citizens, lifting the emergency law, revising the constitution and other laws to make this change irreversible and laying out a clear path to elections that are fair and free.

VOA: special.2011.02.12

The sum of path number 2 and path number 3 get me to the same place, so the energy change by going through this time path, this intermediate point here back all the way to final state should be the same the red path.

而经过路径2和3可以3,到达同样的末态，因此经过路径,2和3带来的能量的变化，与路径1带来的,能量变化相同。

麻省理工公开课 - 热力学与动力学课程节选

"I think we're on a very good path to making a sea-change in our missile defense posture within the coming three-to-five years."

VOA: standard.2010.03.26

Mr.Obama is said to have declared that the United States and Cuba are "on a path of change", while reminding his fellow heads of state that the democratic process that brought them into office does not exist in Cuba.

VOA: standard.2009.04.18