原子在两个能量等级之间震荡，所以钟的精确度为运行37亿年后误差不超过正负一秒。
The atom vibrates between two energy levels allowing the clocks accuracy down to a second in 3.7 billion years.
粮食收购智能定等系统可以提高水分检测的精确度，明确粮食的质量等级。
The intelligent grading system of grain purchasing can improve the accuracy of moisture content. It also can clear and definite the quality grade of the grain.
合同文本中所引用到的标准是用来建立精确度和质量等的等级，以确立工作的目标。
The standard cited throughout the contract documents are used to establish the level of precision, quality, etc. to which the work is to be performed.
合同文本中所引用到的标准是用来建立精确度和质量等的等级，以确立工作的目标。
The standard cited throughout the contract documents are used to establish the level of precision, quality, etc. to which the work is to be performed.
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