The ironware produced a landmark of human history development and progress.
铁器的出现使人类历史产生了划时代的进步。
Its life history, development at various stages, habits, relationship between occurrence and environment, and its natural enemies were dealt with. Last, the control methods were advanced.
本文记述了该虫的生活史，发育历期、生活习性、发生与环境的关系及天敌情况，提出了防治建议。
Its life history, development at various stages, habits, relationship between occurrence and environment, and its natural enemies were dealt with. Last, the control methods were advanced.
本文记述了该虫的生活史，发育历期、生活习性、发生与环境的关系及天敌情况，提出了防治建议。
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