That the tunneling, drilling and graveling machine should ensure the breakage of minimal rock energy capacity;

掘进钻探碎石仪应该保证最小的岩石能容量的破碎；

That the appearance of swinging wave energy conditions should be taken into consideration during the design of the graveling machine;

在设计碎石仪时必须考虑到出现摆动型波浪能量条件；