在此之前，默兹冰舌促使这块海域保持着没有浮冰的状态，为冰沼湖(polynya)形成创造了条件。
The glacier tongue had previously contributed to keeping a section of the ocean free of ice, a condition known as a polynya.
并在十分广泛的条件下，论证了基于样本数据所得到的洛伦兹曲线和基尼系数的估计量都具有强相合性。
Under the general condition, the usual estimators of Lorenz curve and Gini coefficient are proved to possess strong consistency respectively.
将标量场视为矢量场的一种特例，从亥姆霍兹定理出发导出标量场的唯一性条件。
Starting from Helmholtz's theorem, the uniqueness conditions of scalar field are obtained based on the fact that the scalar field can be regarded as a special example of vector field.
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