Finally, the seller knows the actual quality, while the buyer does not.

最后假设销售者了解质量，但消费者不了解。

youdao

Dosage: as raw material dry weight of 0.03% -0.05%, raw materials, according to the actual quality through testing to determine the specific usage.

参考用量：为原材料干重的0.03% - 0.05%，请根据实际的原材料质量通过试验确定具体使用量。

youdao

The typical assays shall be close to the actual quality.

该典型分析值应与实际到货品质保持相近。

youdao

It's the actual quality of their conversations.

CNN: A New Year's resolution for the workplace

Though performance is sublime, we must note that actual visual quality of the Sensation's video leaves some room for improvement.

ENGADGET: HTC Sensation review Hands-on

Ironically, positive commentary focuses on the the hardware more than the software, and on the actual design quality (a challenge to Apple).

FORBES: Top Marks For Microsoft's Surface Tablet, So Far