With a wireless setup, you stick batterypowered sensors up around your home that keep an eye on windows, doors, motion, and more.

出自-2016年12月阅读原文

So, too, would the motion detectors in your home, so the thief will need to continue jamming once he's inside and searching for things to steal.

出自-2016年12月阅读原文

Although no form of matter yet discovered moves as fast as or faster than light, scientific experiments have already confirmed that accelerated motion causes a traveler's time to be stretched.

出自-2011年6月听力原文

with a wireless setup, you stick battery-powered sensors up around your home that keep an eye on windows, doors, motion, and more.

2016年12月四级真题（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 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

Inertia is the resistance of objects to efforts to change their state of motion.

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

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

Newton’s laws of motion and Darwinian evolution each bind a host of different phenomena into a single explicatory frame work.

出自-2012年考研翻译原文

Accommodating this new world of people in motion will require new attitudes on both sides of the immigration battle.

2013年考研真题（英语二）阅读理解 Section Ⅱ