割れ破面観察については，SEMで割れの有無を確認したのち観察を行った．

割れ破面観察については，SEMで割れの有無を確認したのち観察を行った．

ผลลัพธ์ (อังกฤษ) 1:

Cracks in cracks on the fracture surface observation, after confirming that the presence was observed.

ผลลัพธ์ (อังกฤษ) 2:

The crack fracture surface observation, it was observed after confirming the presence or absence of cracks in the SEM.

ผลลัพธ์ (อังกฤษ) 3:

， of fractured surfaces were observed to look after confirming the presence or absence of a crack in the SEM