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heavysiden.亥维赛层; 海氏层; E电离层heavyadj.大(量)的；重的；沉重的；猛烈的heavy diesel oil重柴油heavy motorcycle重型摩托车heavy gauge nail大号钉heavy locomotive重载牵引车heavy coalcutter重型截煤机heavy tower bolt粗芯插销heavy oil heater重油加热炉heavy haul train重载列车heavy typewriter重型打字机heavy hole state重空穴态