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半数耐受量
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半数耐受量
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农学
兽医毒理学
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median tolerance limit,TLm
半数耐受量
水中受试化学物在规定时间内有半数水生生物(如鱼类等)存活的浓度。单位为毫克/升。
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electric heated roll
electric heating
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electric heating oil gathering process
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electric hysteresis loop
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electric image method
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electricity
electricity consumption for irrigation and drainage
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electricity consumption load ratio
electricity consumption of primary industry
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