The gravity model explicitly relates flows between zones to interzonal impedance to travel.
重力模型明确
通过地区间阻抗来将分布量和小区联系起来。
；步；进；[口]交往；经过；游历；漫游
义词
单程陆上
，也指水上或空中。
出发地，途中有停留游览点，距离可长可短，目各异周游或巡。为而不指某次具体，多指到方作长期，不强调直接目地，单、复数均可用。较短暂。，尤指海上，也可指空中。短时期娱乐性游玩，也可指乘火车或轮船往返特定景点足游。征或探险。游览并在多处停靠。;;;;者;地, 终点;经验;足野营;计划，程表;推销；四出兜销社；游服务程时间游；空中社；代理人，代办人走，步，宇宙航游保险；保险，时空之游需求；运需求费用The gravity model explicitly relates flows between zones to interzonal impedance to travel.
重力模型明确通过地区间阻抗来将分布量和小区联系起来。
It is expensive to travel by plane.
坐飞机很费钱。
There may be travel expense, as well.
可能还有途费用。
He reacted ecstatically to my plan to travel to Africa.
他对我去非洲计划表现出极大兴趣。
The prince travelled incognito to avoid crowds and ceremonies.
王子微服以避开人群及避免欢迎仪式。
She resented having the child foisted on her while the parents went travelling abroad.
她对孩子父母出国卻硬要她来照看孩子这事很
感。
Early experiments with military rockets prepared the ground for space travel.
早期军用火箭试验为太空飞奠定了基础。
This preferential ticket entitles you to travel first class.
"凭这张优惠票,你可以坐头等舱。"
They travel to the nearest town on Saturdays for shopping or on Sundays for church.
他们在星期六到最近镇上去购物,星期日去教堂。
One of his quirks is that he refuses to travel by train.
他怪癖之一是不愿乘火车。
The cost of the ticket is proportionate to the distance you travel.
票价和距离是成比例。
We're planning to travel round the globe.
我们正计划做一次环球。
He received reimbursement for his travel expenses.
由于出差花费，他可以得到公司补偿。
We’ll reimburse you for your travelling expenses.
我们将付还你费。
He recouped his travelling expenses from his employers.
他向老板报销了他费。
Many of the city’s populace travel to work by subway or bus.
许多城市平民都是坐地铁或公共汽车上下班。
They advised the government not to issue him a passport to travel abroad.
他们奉劝政府不要给他发护照出国游。
Citizens of the EU can travel without restriction within the EU.
欧盟公民在欧盟境内可以不受限制地出入各国。
New high-speed trains are pointing the way to a new age of European travel.
新高速火车引领了欧洲新时代。
It once seemed inconceivable to everyone that men should travel to the moon.
"人们一度认为,人飞上月球似乎是不可想象。"
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