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单词
selective availability, SA
释义
selective availability, SA
网络
选择可用性
网络释义
1.
选择可用性
SPS是基于C/A码，受到
选择可用性
（
Selective Availability-SA
）保护。它是通过把轨道参数变坏和卫星钟参数抖动结合起来， …
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例句
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fluid-to water cooling
fluid toxoid
fluid tract
fluid transfer
fluid transistor
fluid transmission
fluid transmission gear
fluid transmission line
fluid trap
fluid twisting
fluid type
fluid-type instability
fluid type instability
fluid type shale retorting
fluid unit
fluid valve
fluid valve
fluid valve
fluid valved coupling
fluid velocity
fluid velocity profile
fluid-velocity profile
fluid vibration
fluid viscosity
fluid viscosity ratio
英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/4/26 3:54:06