没人能提供同样的支持和掩护。
这就是为什么许多索马里人反而支持和掩护那些海盗的原因。
This is why many somalis but support and cover those pirates reasons.
有针对性地设计制造了液压支架的底座镗孔机和掩护梁镗孔机。
This paper is targeted to the design and manufacture of hydraulic support base boring machine and a shield.
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