quality shortage of appearance

• 外观质量缺陷

quality shortage of appearance的用法和样例：

例句

1. When mud in bricking-ups dries and solidifies, quality defects shall not be amended by knocking but being rebuilt.
   砌体中泥浆干固时，不得用敲打的办法修正其质量缺陷，而应拆除重砌。
2. This paper analyzes the reason and the quality examination that causes the reinforcing bar beton quality fault.
   分析钢筋混凝土质量缺陷产生的原因和质量检测方法。