“friction blocks”的概念、定义、翻译、参考文献-科学参考

单词	friction blocks
释义	friction blocks [`frik·shǝn ´bläks] ^{PETROLEUM ENGINEERING} Thin blocks with cylindrical surfaces that drag on the inside of the well casing to prevent rotation of the packer (seal between the outside of tubing and inside of casing).
随便看	parabolic reflector parabolic rule parabolic segment parabolic spiral parabolic type parabolic velocity paraboloid paraboloidal antenna paraboloidal coordinate system paraboloidal reflector paraboloid of revolution parabomb para-bromoacetanilide para-bromoaniline para-bromoanisole para-bromobenzyl bromide para-bromophenacyl bromide para-bromophenylhydrazine parabutlerite paracaisson Paracanthopterygii paracentesis paracentric paracentric inversion para-chlorobenzoic acid

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