采用SEM观察了包覆结果，发现包覆后的RDX表面圆滑，包覆后的RDX之间流散性较好。
The coating results were observed through SEM, which indicated that the surface of coated RDX was covered with vivid and pliable film.
当前这一具有代表性的古老曲种由于种种原因已处于艺人流散、后继乏人的濒危状态，急需加以抢救和保护。
The ancient typical folk art is facing a shortage of performers and qualified successors, hence urgent measures are required for saving and protecting it from being lost.
当前这一具有代表性的古老曲种由于种种原因已处于艺人流散、后继乏人的濒危状态，急需加以抢救和保护。
The ancient typical folk art is facing a shortage of performers and qualified successors, hence urgent measures are required for saving and protecting it from being lost.
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