Strict quality level, master the quality of work is preferred.

严格把关质量的关卡，把握师傅的工作质量是首选。

It is service quality level of hotels and inherent embodiment of procedure.

是酒店服务质量标准和程序的内在体现。

It is frustrating now because we are stagnating at a terrible air quality level.

现在的情况很令人沮丧，因为我们停滞在一个很糟糕的空气质量中。

If doing well in mine safe and quality level, we can raise mine safe reliability.

搞好煤矿安全及质量标准化，提高矿井安全可靠性。

Select the quality level for the slide: Low (8-bit), Optimized, JPEG, and High Quality.

选择幻灯片的质量等级：低（8位）、最佳化、JPEG和高质量。