snout of glacier

基本解释

Around a bend in the river, the glacier's snout finally comes into view: It's a deathly shade of black, permeated with pulverized rock and dirt.
走到一处河湾，我们终于看到明永冰川这条巨龙的鼻尖：然而此处冰层的颜色死暗，其中混杂着石粉和灰土。
This glacial lake is bound by the glacier snout on one end, and a moraine—a mound formed by the accumulation of sediments and rocks moved by the glacier—on the other.
这个冰川湖的一端是冰川的末端，另一端则是一排由冰川搬运来的沉积物和岩石累积而成的冰碛。
But, the retreat of a glacier’s “snout” is only one of three measures of how glaciers can change. The other two are its “mass balance” and the rate at which melt-water is discharged.
但是，对冰川末端缩退速度的测量只是冰川变化的三种测量方法之一，另外两种是冰川的“质量平衡”测算法和融水排放速度测算法。
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