例如，雕塑必须是稳定的，这就需要理解质量、重量分布和压力的特性。
Sculptures must, for example, be stable, which requires an understanding of the properties of mass, weight distribution, and stress.
苹果储存处的数字技术有助于对苹果进行分组，保持质量的稳定性。
Digital technology at the apple storage helps to group apples, which can keep the stability in the quality.
be ta版没有最终版中的一些功能，但是beta很稳定，质量也很好。
The beta lacks some features that will make it into the final version, but it's stable and high quality.
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