Master controller is constructed of shell and explosion-proof components.
主令控制器由外壳和防爆元件等组合而成。
2
According to the principle of the thin shell pressure container, proof of simplified MA's formula.
按照薄壁压力容器的原理，简化了公式的证明。
3
On the basis of above analysis, the evolution process of shell ridge has been discussed further, and provides the theoretical proof for studying the ancient environment.