事实上，后来的研究已经证明，在元素周期表中，元素不应该严格按照原子质量来排序。
In fact, subsequent work has shown that in a periodic table, elements should not be ordered strictly by atomic mass.
世卫组织基本药物目录为各国按照质量、安全性和效力标准选择药物处理公共卫生重点提供了一个样版。
The WHO List of Essential medicines provides a model for countries to select medicines addressing public health priorities according to quality, safety and efficacy standards.
一个设计良好的测试可以提供足够的保证，系统可以按照产品的质量验收。
A well-designed test can provide enough assurances that the system will be of acceptable quality for production.
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