orbitals, s, p, d and f in double bonds, the s and p
spd型或dsp型杂化轨道介绍练习
form by side-ways overlap of unhybridized p- and d-orbitals
the sp06d05 hybrid orbitals in sf64
其分为即期和远期两种98即期交单(d/p sight):指出口方开具即期汇票
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