The plan was to sample nitryl chloride levels in Marine air, which computer models predicted would not exceed 50 parts per trillion.
他们计划对途经海洋的空气进行抽样调查，计算机模型预测这些海洋空气中硝基氯含量不会超过万亿分之五十。
Before leaving, the scientists decided to test the equipment they would use to detect airborne nitryl chloride on the cruise by sampling the air in Boulder, a mile above sea level.
离开之前，科学家们决定通过抽样检测海拔一英里的博尔德市的空气，对在旅程中将会用来检测空气中硝基氯含量的设备进行检验。
Before leaving, the scientists decided to test the equipment they would use to detect airborne nitryl chloride on the cruise by sampling the air in Boulder, a mile above sea level.
离开之前，科学家们决定通过抽样检测海拔一英里的博尔德市的空气，对在旅程中将会用来检测空气中硝基氯含量的设备进行检验。
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