名词短语
中文翻译：Unknown
同义词：
['national defense metrology', 'nationaldefense metrology', 'national defense metrology例句：1. The developmentof national defense metrology is crucial fornational security.（国家防御计量学的发展对于国家安全至关重要。）2. The national defense metrology projectaims to improve the accuracy of military equipment.（国家防御计量学项目旨在提高军事装备的准确性。）3. The national defense metrology instituteis responsible for developing and maintaining standards formeasuring equipment.（国家防御计量学研究所负责制定和维持测量设备的标処。）']
例句：
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1. The developmentof national defense metrology is crucial fornational security.
国家防御计量学的发展对于国家安全至关重要。
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2. The national defense metrology projectaims to improve the accuracy of military equipment.
国家防御计量学项目旨在提高军事装备的准确性。
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3. The national defense metrology instituteis responsible for developing and maintaining standards formeasuring equipment.
国家防御计量学研究所负责制定和维持测量设备的标処。