也有人指出，质量成本的主要由内部和外部缺陷成本构成。

It has also been stated that the major contributors of COQ is internal and external failure costs.

youdao

追求质量当然要付出成本的，质量成本一般包括预防成本、检验成本、内部缺陷成本和外部缺陷成本。

The pursuit of quality, of course have to pay the cost, quality, costs generally include the cost of prevention, testing costs, the cost of internal defects and external defects cost.

youdao

但是这些卵细胞却不能正常发育，其原因主要是受精核外部的部分卵细胞有缺陷。

But they never developed properly, largely because of defects in parts of the egg outside the fertilized nucleus.

youdao