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单词
isobutene
释义
isobutene
Encyclopedia
工学
异丁烯
释
isobutene;isobutylene
异丁烯
具有4个碳原子、单一双键的支链烃类化合物。又称2-甲基丙烯。常温常压下以气体状态存在,易燃易爆,沸点-6.90℃,临界温度144.74℃,临界压力4.00兆帕。
理学
异丁烯
释
isobutene;isobutylene
异丁烯
丁烯的一种异构体,分子式(CH3)2C═CH2。
随便看
approximation by excess
approximation by function of complex variable
approximation by interpolation
approximation by least squares
approximation by linear operators
approximation by operators
approximation by periodic transformations
approximation by polynomials
approximation by rational functions
approximation by series
approximation by splines
approximation error
approximation formula
approximation function
approximation in quadratic norm
approximation in the mean
approximation in the quadratic mean
approximation method
approximation of an equation
approximation of an operator
approximation of a solution
approximation of effective medium
approximation order
approximation polynomial
approximation problem
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