关于flint的文学精选
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flint glass造句
hollowflintglassThelenstelescope,orrefractor,wasvastlyimprovedwhenitbecamepossibletomanufacturehigh-qualitylensesmadefromflintglass....
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flint造句
BurleyflintclayPrehistoricmanusedflintknives.Containingorcomposedofflint.Theytippedtheirarrowswithflint.Tostrikeaflinttoproducesparkspebblesofflintusedinmasonryconstruction.Thiswallismadeofflint.Apiec...
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flint clay造句
1、Burleyflintclay2、Adding7%cordierite,7%flintclayand2%quartzsandinmatrixenabledthecastabletohavehighestthermalshockresistance....