Actually, I find that constant repetition of the same words is absolutely necessary in technical writing. I used to do this thing where I'd try to write my research papers as if I was writing literature, trying to find new ways to say the same thing to avoid repetition, and I got some really harsh criticism as a result. I went to my university's center for academic English and they pointed out my mistake to me and suddendly it was blindingly obvious. In a technical paper you have to use the same exact words to refer to the same concept, or you will immediately confuse the reader, who will think you mean two (or more!) different things, one for each different turn of phrase. So I adjusted my writing to exploit the rythm created by the repetition of the same few words every few sentences, because of course I want to convey a precise meaning but I also want my papers to read well. And now reviewers note my papers are well written and clear; and so far nobody has complained about repetition.

my issue is that i reuse adverbs and adjectives within a few sentences of one anther and simply don’t notice it — like saying “rain fell in gentle waves,” then a sentence or two later, “the tide rolled in, soft, gentle, crashing against…” it just feels.. lazy, unimaginative to me. i read somewhere that it’s a quirk of the brain (perhaps only for some people, i don’t remember) where words in immediate memory get looped and “stuck” there. that seems to be what happens when i write, and it chaps my ass.