City traffic network is basic framework of urban spatial form, ration researching traffic network is important aspect of controllable parameter of urban spatial form.

城市交通网络是城市空间形态的基本骨架，交通网络的定量研究是对城市空间形态可控参数研究的重要方面。

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Castro said the monthly ration book of basic foods, perhaps the most cherished of subsidies, represented an "unbearable burden... and a disincentive for work."

卡斯特罗说到；月度基本食品定量配给本可能是大家最真爱的津贴，它代表一种不可容忍的负担…也是一种不利于工作的因素。

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The course construction of mathematics should stress the mathematics rudimentary knowledge and basic skill, strengthen the cultivation of the mathematics ability and ration…

数学课程建设应突出数学化的基础知识和基本技能，加强数学能力和数学理性精神的培养；

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Tourists get to spend convertible pesos in the city's best stores, while locals are paid in regular pesos, which they can only spend in shops that often lack even the basic goods to which their ration cards entitle them.

CNN: Havana: Living in a time-capsule world