根据该理论，地球外部壳体由约10个大的刚性板块和20个较小的板块组成。
According to this theory, the earth's outer shell consists of about 10 large, rigid plates and about 20 smaller ones.
外阀门则在外部(通常在壳体的进水部位)。在下潜时，油从外部气泡传如内部气泡。
To dive, oil is transferred from the external bladder to the internal one.
基于非局部弹性理论，在考虑小尺度效应影响的情况下，建立了单壁碳纳米管在均匀轴向外部压力下的壳体模型。
A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory.
应用推荐