短语
货物平均运程
average freight haul
;
average haul of freight traffic
旅客平均运程
average journey per passenger
每旅客平均运程
Average Transport Distance Per Passenger
每吨货物平均运程
Average Transport Distance Per Ton
输运平均自由程
transport mean free path
中子输运平均自由程
neutron transport mean free path
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