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Encyclopedia
理学
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释
thulium
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化学元素,元素符号Tm,原子序数69,原子量168.93422(2),属周期系ⅢB族,稀土元素,镧系元素。
Astronomy
全称:thulium。缩写:Tm
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Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
thulium
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emergency science popularization
emergency services sector
emergency shelter
emergency shelter area facilities
emergency shutdown
emergency shutdown device
emergency shutdown of rocket engine
emergency shutdown system
emergency shut-off valve
emergency spillway
emergency staircase
emergency standardization
emergency standards
emergency standard system
emergency stop
emergency stop function
emergency stop switch
emergency storage pond of concentrators
emergency supplies
emergency supplies production capacity reserve
emergency supplies reserve
emergency supplies reserve mode
emergency supplies storage
emergency support capacity
emergency-supported system for road traffic malfunction
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