研究者们也正在尝试设计一种数米宽的适合装置于拖车的天线，可以被拖曳在巡逻警车的后面。
The researchers are therefore experimenting with antennae that fit into trailers a few metres wide and which can be towed by patrol cars.
1960年时，数英里宽的森林带环绕着坦噶尼喀湖300英里的岸边。
In 1960 there were forests fringing the 300-mile shoreline of Lake Tanganyika and extending for miles.
影响汇流口的主要控制因素有：汇流比、汇流角、河床高差、宽深比、汇流口下游干流弗劳德数等。
All of them are controlled by following factors: discharge ratio, junction Angle, difference in bed height, width to depth ratio and Froude number downstream the confluences.
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