加速度的单位名称是什么

哪个doesmachmean？how​​fastismachspeed？howmanykilometersperhourisequivalentto？ buthowbigisthisspeedunitand和whatkindofspeeddoesitresent？mach，syslikeanaction，isactallyAnoun和thistermesmednepermandybythegermans。 fromgermanscientististernstmach。 来自Thelate19thearlytothearly20世纪，Machmadeanible-ProgressInscienceandtechnology...

Endthenamingchaos,USBbrandnewlogodirectlymarksthetransmissionspeedandpowerwattageprovideamoreintuitivespeedlevel.ITHomesummarizesthefollowingkeypoints:clearlyindicateStandardizationofchargingpower(inwattsW)ofequipmentanddatacables(inGbpsunits)reducescomplexityNames,suchas"USB3.2Gen2×2 "或"usb4v2"介绍，deskiteSandAccessories.hofthelateStnamingLogo，itisisexpectedTosee"..。

XiangxiPrefecturePostalAdministrationofXiangxiPrefectureChinaPostSpeed​​LogisticsCo.,Ltd.XiangxiAutonomousPrefectureBranch...XiangxiPrefecturePostalAdministrationofXiangxiPrefectureChinaPostSpeed​​LogisticsCo.,Ltd.XiangxiAutonomousPrefectureBranchLuxiCountyBranchwasinspected. ObjectName：LuxicountyBusinessDepartment，Xiangxiautonomousousprefecteconbranch，ChinapostspeedLogissisco。 ..