钙

• It occurs as an exchangeable base in the clay mineral and organic fractions of soils .
  钙是以交换性盐基在粘土矿物及土壤的有机部分出现的。
• At a given moment there is only 1/40 ounce of calcium circulating in joe's bloodstream .
  在一个特定时刻，乔血液里循环着的钙只有140盎司。
• This modest amount of sodium bicarbonate prevents the potassium depletion and demineralization of bone .
  这点碳酸氢钠量即可防止缺钾和骨质脱钙。
• Calcium is also necessary to prevent leakage of potassium during the aging of beet slices .
  甜菜薄片衰老时期，钙对于防止钾离子丧失，也极其必要。
• Calcitonin, when administered intravenously, turns out to be yet another flush promoting agent .
  静脉注入降血钙素的结果表明，它是一个潮红促进剂。
• The growth of the aerial portion was closely related to the supply of available calcium in the soil .
  地上部分的生长、与土壤有效钙的供应密切相关。
• In general, excess calcium effects result from the anion with which the element is associated .
  通常，钙素过量是与该元素相联系的阴离子伴随产生的。
• Calcium apparently acts in a similar manner as some of the hormones that defer senescence .
  钙这种明显的作用同某些激素能够延缓衰老的作用方式相似。
• The soluble calcium in the saturation extract of these two soils was 1. 5 and 0. 6 emp .
  此两种土壤饱和浸提液中的可溶性钙含量，分别为15及06emp。
• It is, in fact, quite probable that calcium released by litter decay is used by uptake by plants .
  事实上，由凋落物腐解释出的钙很可能被植物摄取利用。