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硼酸镁晶须
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硼酸镁晶须
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工学
无机晶须新材料
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magnesium borate whisker
硼酸镁晶须
分子式为Mg2B2O5,相对分子质量为150.23。外观为白色蓬松状固体,显微镜下为纤维状单晶体,在扫描电镜显微镜下观察硼酸镁晶须长度为10~50微米、直径0.5~20微米,相对密度为2.91,莫氏硬度为5.5;熔点为1360℃,耐热温度为1000℃;拉伸强度为3.92吉帕,弹性模量为264.6;热膨胀速率18×10-6/℃(平行纤维轴),(2~10)×10-6/℃(垂直纤维轴)。又称焦硼酸镁晶须。
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conditional expectation
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conditional formation constant of complex
conditional function
conditional gene knockout
conditional gradient
conditional heteroscedasticity
conditional identity
conditional independence
conditional inequality
conditional information
conditional instability
conditional instability of the second kind (CISK)
conditionality
conditional lethal
conditional logic
conditional logistic regression
conditional logit regression
conditional log-likelihood
conditional luminosity function
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