东风31不同于中国旧式的基于发射井的战略导弹，旧式的相对很容易在发射前就被摧毁，而东风31能够隐藏于卡车后面。
Unlike China's older silo-based strategic missiles, which would have been relatively easy to destroy before launch, the DF-31 can be concealed on the back of a lorry.
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