The influence of air Relative Humidity and mass flow on dust generation rate was determined.
通过实验主要测定空气湿度和质量流量对粉尘产生率的影响。
We won't dust them off from a box and show them to a generation half our age.
我们不会从尘封的盒子中取出它来给小我们一半的一代人看。
Once a generation of young people has obtained a good knowledge of physics, music or English we don't just dust off our hands and go home – we move on to the next.
一旦年轻一代熟悉物理，音乐或英语方面的知识，我们不需除去双手灰尘回家——可以继续往前走。
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