在第二个级别的银行系统，基础货币通过货币系数的而发生效用。总货币供应量可以表示为。
Under the second-level bank system, base money act through money multiplier. Total money supply can be expressed as.
土壤有效磷数量和强度及其缓冲系数是评价土壤磷素供应能力的重要指标。
The quantity of soil available phosphorus and intensity and its buffer coefficient are the important indexes to evaluate supply capacity of soil phosphorus.
源库调节后，植株源供应能力明显减少，叶面积系数显著下降，单株生产力也显著降低。
When the source-sink was regulated the supply ability of plant and LAI are decreased remarkably, and the single plant productivity is also reduced prominently.
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