On a land vehicle the speed input is usually obtained from the speedometer drive system.
对地面运动体，输入速度通常由测速计的驱动系统来供给。
According to DEA validity, the paper analyses the reasons for DEA invalidity from land input-output efficiency, and puts forward Suggestions to use urban land effectively.
根据DEA有效性值，从土地投入产出两个方面分析了非dea有效年份的原因，并根据计算结果提出了有效利用城市土地的建议。
The source rocks are mainly formed in interdeltaic bay and lower delta plain environments where intermediate subsidence is kept and there is little input of the sediments from land.
烃源岩主要形成于三角洲间湾和下三角洲平原，这里沉降幅度中等且陆源供给受到限制。
The source rocks are mainly formed in interdeltaic bay and lower delta plain environments where intermediate subsidence is kept and there is little input of the sediments from land.
烃源岩主要形成于三角洲间湾和下三角洲平原，这里沉降幅度中等且陆源供给受到限制。
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