英语词汇“pencil-beam survey”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pencil-beam survey
释义	pencil-beam survey pencil-beam survey A form of redshift survey where deep exposures of comparatively small fields are taken only at sparse intervals across the sky. This allows a compromise between sampling deep in the redshift direction with a wide sky coverage and an economical use of telescope time.
随便看	application gateway protocol application generated application generator application governance and archiving application governor application group application group name application header application host environment application hosting service application identification application identification channel application identification channel signal application/identification number activity code application identifier application implementation methodology application industrielle du vide application information table application infrastructure and service provider application infrastructure management application infrastructure provider application-initiated lightpath provisioning application input application insight module application inspection and control

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