... 平方square 开方evolution;extraction of a root 等于equal ...
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... [development] 对新资源、新领域的开拓和利用 [extraction of a root;evolution] 求一个数的方根的运算,即乘方的逆运算 [rent a hotel room] 〈方〉∶在旅馆内租房间住宿 ...
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extraction of a root evolution 求一个数的方根的运算
The extraction process of lappaconitine from the root of Aconitum sinomontanum Nakai, which is a special plant in GanSu province China, using 75% ethanol with a yield of 0.
用体积分数为75%的乙醇做溶剂，从甘肃高乌头的根中提取了刺乌头碱，该新方法产率可达0。
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