US space science - Earmarks, rising costs threaten NASA missions

被引:1
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作者
Lawler, A
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10.1126/science.289.5487.2018
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
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页码:2018 / 2018
页数:1
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