momentum
英 [mə'mentəm]
美[mo'mɛntəm]
- n. 势头；[物] 动量；动力；冲力
考试真题
- Whether it's a sports team or a presidential campaign, everybody relishes having the big momentum, because it makes them harder to stop or change direction.
出自-2015年12月阅读原文
- When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline-powered cars to electric cars, or even a switch from an incandescent to a fluorescent light, understanding energy system inertia and momentum can help you decide whether their plans are feasible.
出自-2015年12月阅读原文
- Unfortunately for them ( ' , and often the taxpayers), our energy systems are a bit like an aircraft carrier: they are unbelievably expensive, they are built to last for a very long time, they have a huge amount of inertia ( ' , meaning it takes a lot of energy to set them moving), and they have a lot of momentum once they are set in motion.
出自-2015年12月阅读原文
- So a heavy object, like a football player moving at a high speed, has a lot of momentum — that is, once be is moving, it is hard to change his state of motion.
出自-2015年12月阅读原文
- One kind of momentum is technological momentum.
出自-2015年12月阅读原文
- Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.
出自-2015年12月阅读原文
- Not only moving objects and people but all systems have momentum.
出自-2015年12月阅读原文
- Momentum is said to be conserved.
出自-2015年12月阅读原文
- In physics, moving objects have two characteristics relevant to understanding the dynamics of energy systems: inertia and momentum.
出自-2015年12月阅读原文
- Energy.systems, like an aircraft carrier set in motion, have huge momentum.
出自-2015年12月阅读原文
- By far the biggest type of momentum that comes into play when it comes to changing our energy systems is economic momentum.
出自-2015年12月阅读原文
- But there are other kinds of momentum as well.
出自-2015年12月阅读原文
- But the momentum of incandescent lighting does not stop there.
出自-2015年12月阅读原文
- Another type of momentum we have to think about when planning for changes in our energy systems is labor- pool momentum.
出自-2015年12月阅读原文
- After all, we don't speak only of objects or people as having momentum; we speak of entire systems having momentum.
出自-2015年12月阅读原文
- Another type of momentum we have to think about when planning for changes in our energy systems is labor-pool momentum.
2015年12月六级真题（第一套）阅读 Section B
- In physics, moving objects have two characteristics relevant to understanding the dynamics of energy systems: inertia and momentum .
2015年12月六级真题（第一套）阅读 Section B
- Momentum is said to be "conserved", that is, once you build it up, it has to go somewhere.
2015年12月六级真题（第一套）阅读 Section B
- So a heavy object, like a football player moving at a high speed, has a lot of momentum — that is, once he is moving, it is hard to change his state of motion.
2015年12月六级真题（第一套）阅读 Section B
- Unfortunately for them and often the taxpayers, our energy systems are a bit like an aircraft carrier : they are unbelievably expensive, they are built to last for a very long time, they have a huge amount of inertia meaning it takes a lot of energy to se
2015年12月六级真题（第一套）阅读 Section B
- When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline -powered cars to electric cars, or even a switch from an incandescent to a fluorescent light
2015年12月六级真题（第一套）阅读 Section B
- The move to renewables is picking up momentum around the world: They now account for more than half of new power sources going on line.
2018年考研真题（英语二）阅读理解 Section Ⅱ
- The world art market had already been losing momentum for a while after rising bewilderingly since 2003.
2010年考研真题（英语二）阅读理解 Section Ⅱ