“local mean noon”的概念、定义、翻译、参考文献-科学参考

单词	local mean noon
释义	local mean noon [`lō·kǝl ¦mēn ¦nün] ^ASTRONOMY Twelve o'clock local mean time, or the instant the mean sun is over the upper branch of the local meridian; local mean noon at the Greenwich meridian is called Greenwich mean noon.
随便看	shielding distance shielding factor shielding gas shielding layer shielding ratio shield volcano shift shifting shifting theorem shift joint shift of butts shift register shift-register generator shift work shikimic acid Shillelagh shim shimmer shimmy shim rod shingle shingle barchan shingle beach shingle-block structure shingle lap

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