1·Because ice restricted to high altitudes and to polar regions, running water moves far more rock debris each year than ice does.
由于冰只局限在高地和极区，所以每年流水搬运的岩屑比冰所运走的多得多。
2·Three end members on the classification triangle chart are quart (q), feldspar (f) and rock debris (r).
分类三角图的三个端元是石英(Q)、长石(F)、岩屑(R)。