该地区土壤粘粒和有机质平均每100 克所具有的负电荷量分别是15.7和273毫克当量。
The mean negative charge quantity pocessed by the clay and organic material of the district in per100g is respectively 15.7 and 273mgN.
瓶装血浆钾含量显然是时间的直线职能，即浓度以每天增加大约1毫克当量的速度增长。
The plasma potassium level of bottled blood was apparently a straight line function of time, the concentration increasing at the rate of approximately 1 milliequivalent per day.
钾20毫克当量；
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