rigid particle
... rigid overlay ==> 刚性面层 rigid particle ==> 硬颗粒 rigid patrol airship ==> 硬式巡逻飞艇 ...
[计] hard particle
... hard machine check 硬设备校验 hard particle 硬颗粒 hard register 硬设备寄存器 ...
hard pellet
Fine Hard Grain
SKCS