将探测器由一个变成两个，将需要在原来的3.5亿美元标价的基础上追加1.5亿美元，其中不包括发射和运行费用。
Doubling the number of Nasa probes is believed to be adding about $150m on to the $350m price tag of a single mission, excluding launch and operations.
结果表明，这种探测技术方案效果好，费用省。
The results show that the comprehensive surveying techniques and methodologies are effective and economic.
这个探测组有34名工作人员。 小组的行动协调员西伯·本图龙表示，用鼠探雷还有其他好处：与狗相比，老鼠的购买和训练费用更低，运输起来也更容易。
Theap Bunthourn, operations coordinator for the 34-member team, cited other advantages of using rats: They are cheaper to acquire and train than mine-sniffing dogs and easier to transport.
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