1. To transport(ions or molecules) against a concentration gradient by the expenditure of chemically stored energy. 
   输送通过消耗以化学形式储存的能量把（离子或分子）输送到一个集中倾斜度
2. transport of a substance across a cell membrane by diffusion; expenditure of energy is not required. 
   物质通过扩散而透过细胞膜进行传输的过程；不需要消耗能量。
3. transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy. 
   由于浓度差异，蛋白质或药物等物质透过细胞膜在不同细胞之间传送的过程；需要消耗能量。
4. burden of educational expenditure 
   教育费用的负担
5. effect of defence expenditure 
   国防费支出效果

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  运输环境工程学 transport expenditure...运输支出 transport facilities...{n.}运输设施 transport facility
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• 2. 运输环境工程学
  [医]运输设备操作员 transport ergonomics...运输环境工程学 transport expenditure...运输支出 transport facilities
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