ABBREVIATION for quick-firing 速射的
We want to know whether a given vector field with components P, Q and R can be written as f sub x, f sub y and f sub z for a same function f.
要看向量场,能否写成，其中f是同一个函数。
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)。
Have you read his f? O yes, but I prefer Q.
你读过他的F吗？哦，读过，可是我更喜欢Q。
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