基于信号传播时间 的定位方法又可以分为基于信号到达时间(TOA, Time of Arrive)和信号到达时间差(TDOA, Time Difference of Arrive)两种定位方法。
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Finally the time of the year would arrive when the valley would produce crops, such as wheat, barley, fruit, all ready to harvest.
一年的时间到了,山谷里的庄稼,如小麦、大麦等,还有水果都成熟了,都在等候收割。
Regardless of the weather or the distance, Paul Wilson will make sure low income students in his neighbourhood arrive at their college classes on time.
不管天气如何,距离有多远,保罗·威尔逊都会确保附近低收入家庭的学生准时上大学。
Inside the box, Sunee saw something uncommon. It was a red silk umbrella. She had never seen anything like it! "Shipping a package overseas used to take a lot of time," said Grandmother "Packages traveled by train and ship. It could take many months to get a package from across the ocean. How long did your package take to arrive?"
在盒子里,苏尼看到了一些不寻常的东西。那是一把红色的绸伞。她从来没有见过这样的东西!“过去寄一个包裹到海外要花很多时间,”祖母说,“包裹要乘火车和轮船。大洋彼岸收到包裹可能需要好几个月的时间。你的包裹花了多长时间到达?”
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