传播的疫苗衍生脊髓灰质炎病毒（cVDPV）在尼日利亚的出现，再次证明尚有不少儿童没有得到保护，使他们免遭脊髓灰质炎病毒的侵袭（无论是野生型还是疫苗衍生型）。
The spread of a circulating vaccine-derived poliovirus in Nigeria reaffirms that not enough children are protected from poliovirus (wild or vaccine-derived).
利用直链有机胺与金属卤化物在适当的溶剂中进行反应，成功的制备出金属卤化物衍生型钙钛矿化合物。
Metal halide based perovskite materials are successfully prepared with the reaction of organic amine and metal halides in proper solvents.
在此基础上衍生的“T”型空间开发战略广泛应用于国土开发和经济布局，成效显著。
T-shaped spatial development strategy, derived on this basis, has been widely applied in territorial development and economic distribution with a remarkable success.
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