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。
Fair average quality at the time and place of loading shall be assessed upon the basis of London Corn Trade Associations officials F. A. Q. standard.
装运地装货时的匀称中等质量，以伦敦谷物商业协会官方匀称中等质量为准。
Ding Q, Wu J f, li t, et al. The effect of total straw incorporation on rice growth and soil fertility [J]. Acta Agriculturae Universitatis Jiangxiensis, 2014, 36 (1) : 44-49.
丁奇，吴建富，李涛，等。稻草全量还田对双季水稻生长和土壤肥力的影响[J]。江西农业大学学报，2014,36 (1)：44 - 49。
Ding Q, Wu J f, li t, et al. The effect of total straw incorporation on rice growth and soil fertility [J]. Acta Agriculturae Universitatis Jiangxiensis, 2014, 36 (1) : 44-49.
丁奇，吴建富，李涛，等。稻草全量还田对双季水稻生长和土壤肥力的影响[J]。江西农业大学学报，2014,36 (1)：44 - 49。
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