It'd be more accurate to call this a binary quake: an aftershock that struck 16 hours after the initial temblor measured an identical 7.8 on the Richter scale and was equally destructive.
Based on the principle of electronegativity equalization, a new method is developed which can be used to scale the basicity of binary oxides.
本文应用电负性均衡原理，建立了一种标度二元氧化物碱性强弱的新方法。
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The common fabrication technologies of binary optical elements were expatiated, including etching, thin-film deposition, direct writing, excimer laser projection and gray-scale masks.