The difference is quite significant, with land factors of between 1 and 4, suggesting that any attempt to reduce the transport costs of exports and imports of landlocked developing country will primarily have to aim at influencing the level of costs accruing to inland transit operations.
差别巨大，陆地系数为1到4, 它表明任何力图减少内陆发展中国家进出口运输费用的尝试必须主要着眼于影响内陆过境运输业务的费用水平。