![allotropic造句怎么写]( "allotropic造句怎么写")
- Titaniuminthepurestatecanexistineitheroftwoallotropicforms.Ametallicelementhavingallotropicformsusedinawidevarietyofalloysfoundinstibnite.Thestructuresoftheprincipalallotropicformsofalltheelementswillbediscussedindetailasthechemistryofeachelementistr...
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