According to the characteristics of price elasticity of demand of prots this paper analyses the reason why port tariff remains relatively stable.
根据港口企业需求的价格弹性特点，分析了港口费率相对稳定的原因。
It is chiefly because of this fact that the oil price remains fairly stable on Japan's home market while on the international oil market oil prices fluctuate unpredictably and keep soaring.
因此，在近年国际市场油价变化莫测、不断攀升期间，日本国内市场石油价格变动不大。
It is chiefly because of this fact that the oil price remains fairly stable on Japan's home market while on the international oil market oil prices fluctuate unpredictably and keep soaring.
因此，在近年国际市场油价变化莫测、不断攀升期间，日本国内市场石油价格变动不大。
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