本文就目前关于饲料中磷的生物学效价评定的方法即平衡试验法、斜率比法、估测法、三项指标综合法、体外溶解度法、体外透析法作一综述。
The methods of measuring the biological value of feed phosphorus including balance experiment, slope rate method, tri - index method, in vitro solubility and in vitro dialyse methods were reviewed.
一位欧盟官员告诉记者，所谓的共同限排“曲线斜率”意味着重型车辆制造商比轻型车辆制造商付出的要多。
An EU official told reporters the so-called "slope of the curve" in sharing emissions cuts meant makers of heavier vehicles would have to do more than manufacturers of lighter cars.
当材料的应力应变关系为弱硬化型时，应力比与应变增量比关系为两段斜率不同的直线；
When the stree strain relationship is the weak hardening, the relationship between stress ratio and strain incremental ratio shows the straight line with two different slopes.
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