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赤經
释义
赤經
chì jīng
测量天体位置的一个东西向座标。从春分点起沿天球赤道向东计量到天体时圈,通常以时间而不用角度为单位,其符号以希腊字母α表示。
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rotary disk biological contactor
rotary disk bit
rotary disk column
rotary disk contactless
rotary disk contactor
rotary-disk contactor
rotary disk ditch cleaner
rotary disk driller
rotary disk extractor
rotary disk feeder
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rotary disk grizzly feeder
rotary disk heat exchanger
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rotary disk mower
rotary disk mower-bar unit
rotary disk press
rotarydisk pulsed extractor
rotary disk pulsed extractor
rotary-disk pulsed extractor
rotary disk regenerator
rotary-disk regenerator
rotary disk shutter
rotary disk trencher
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更新时间:2025/3/18 17:23:58