A distinction must be made between archaeology proper and science-based archaeology.
必须对严格意义上的考古学和以科学为基础的考古学加以区分。
Adopt international science-based standards to limit human exposure.
采纳有科学依据的国际标准以限制人类暴露。
Overlooked by portraits of great 18th-century scientists, the judges heard four powerful pitches for science-based businesses.
在18世纪伟大科学家肖像的俯视下,评判员聆听了4份有说服力的科研商业项目推介。
But then she and several others from the institute decided to create their own way to support community-based science education.
VOA: special.2011.07.11
Caroline Smith DeWaal, director of food safety for the Washington DC-based Center for Science in the Public Interest.
VOA: standard.2010.05.27
The Washington-based Center for Science in the Public Interest, or CSPI, notes that a 2005 report from the U.S.Institute of Medicine found that marketing to children makes them more likely to ask for and eat unhealthful foods.
VOA: standard.2010.06.24
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