• We shall revert to this subject in a later paragraph; for the moment we assume that ...


• We will learn how to develop such equations in the next chapter; for now, we may rely on a set of tabulated equations given in Appendix D.


• The rms speed is different from ... ; for the present, the value of vu will be taken as indicative of ...


For the time being, draw all plate boundaries as single lines, without any distinction as to the type of boundary each represents.




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