n.脆度；脆性
Brittleness of cluster rachises can also be a problem. 集束花莖脆性也可以是一個(gè)問(wèn)題。
The mechanism of brittleness of the alloy has been discussed. 對(duì)硬質(zhì)含金脆性機(jī)理進(jìn)行了探討。
