I met this sentense in a textbook, it says " for long distant transmission, it is desirabl to use as high a voltage convertion as can be accomplished by a transformer". I don't know what the first as means, as for the second as, I take it as which, I am not sure if i am right. Thanks for any help.
Thank you, Xkalibur. Your answer did give me some light on me. Can you offer some similar examples?
ps. some mistakes corrected in the sentense." for long distant power transmission, it is desirable to use as high a voltage convertion as can be accomplished by a transformer"