实践证明遥感卫星数据时效性好、覆盖范围大、成本相对低廉。
It is proved that the remote sensing satellite data is timely, widely covered and costs relatively lower.
介绍说迈阿密的夜生活相当奔放。 这里的单身女士比男人多而且生活成本相对低廉。
Miami has a spicy nightlife, Rent.com says, there are more single ladies thanmen and the cost of living is relatively inexpensive.
这些治疗和干预措施的成本相对低廉，但却能有效地控制结核病在艾滋病病毒感染者之间传播。
These treatments and interventions of the relatively low cost, but it can effectively control TB in HIV-infected person transmission.
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