“index arm”的概念、定义、翻译、参考文献-科学参考

单词	index arm
释义	index arm [`in´deks ´ärm] ^NAVIGATION On a marine sextant, a slender bar carrying the index; the bar pivots at the center of curvature of the arc of the sextant and carries the index and the vernier or micrometer.
随便看	trivial name trivial solution trivium t-RNA Trochacea trochal disk trochanter Trochidae Trochili Trochilidae Trochiliscales trochlea trochlear nerve trochoblast Trochodendraceae Trochodendrales trochoid trochoidal mass analyzer trochoidal wave trochophore trochosphere trochus troctolite troegerite troffer

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