the sheath around an electric cable电线护皮He drew his sword from its sheath.他拔剑出鞘.This suit of clothing is more inexpensive than that sheath.这套衣服比那套便宜....
Coleorhiza ( pl . coleorhizae ) The protective sheath surrounding the radicle in grasses.胚根鞘:保护幼根的鞘状结构.Conclusion Saber sheath trachea is a sign of rather severe COPD.结论剑鞘气管是较重的copd的标志.Coleoptile A sheath like structure ...