没有卫星就意味着我们无法算出行星的密度,于是测量也就凝滞不前了.
No moon means we can't work out the density of the planet, so the whole thing grinds to a halt.
居民每次出行的总时间一般包括城市干路内的时间和干路所围合的街区内的出行时间，合理的干路网密度应当使二者之和最小。
The total trip time enclose the time used in block and out of block, reasonable density of road network should make the total trip time to be least.
根据土地利用、人口密度和公交站点覆盖率确定各交通区的公交分担率，得出交通区公交出行量，再应用最大熵原理进行公交出行分布预测。
According to the land use, population density and coverage percentage of the public transport station, the sharing of public transport among traffic zones and their travel demand can be determined.
即使优先考虑机动车的出行效率，路网密度所起到的作用也不可能通过宽而稀的路网来实现。
If road network is only designed for motor vehicle, the role of density of network cant be displaced by the sparse network with wide road.
在节约时间方面，高速铁路采用高速度、高密度、全天候运行方案，借助市内交通的有机衔接，大幅缩短了点到点旅行时间，改善了人们出行方式的选择。
In saving time, high-speed railway reduced the travel time and improves the traveling condition by using the high speed, high density and all-weather running programs.
在节约时间方面，高速铁路采用高速度、高密度、全天候运行方案，借助市内交通的有机衔接，大幅缩短了点到点旅行时间，改善了人们出行方式的选择。
In saving time, high-speed railway reduced the travel time and improves the traveling condition by using the high speed, high density and all-weather running programs.
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