1、便步走
... rank or step 阶; 阶 route step 便步走 shared steps 共用步骤; 共享步骤 ...
2、军〉便步
...danger step危险的步骤route step〈军〉便步at quick step快步走 ...
two step route两步法
design for step route梯路设计
three-step synthetic route三步法合成路线
two-step hydrothermal route两步水热合成
one-step hydrothermal route一步水热法
improved two-step synthetic route改进的两步法合成路线
the improved two-step synthetic route改进的两步法合成路线