You apply a force and the material will resist it until you have a force great enough to break the bonds.

如何你对它施加一个外力，材料能够承受,除非这个外力足够强大去打破键。

麻省理工公开课 - 固态化学导论课程节选

It is not about making the material relevant and easy to apply in given opportunities to do that. It is not about creating interaction in community.

不是整理相关材料,以便于时机适宜时容易,利用，不是,在社群内进行互动。

麻省理工公开课 - 媒体、教育、市场课程节选

It is now working to apply the material, which it calls BioSteel, in medical applications.

ECONOMIST: REPORTS

The rules apply both to advice and sales material.

BBC: Split caps 'mis-sold'

However, the real estate professional special rules that apply when rental activities are aggregated to achieve material participation status suggest trade or business treatment.

FORBES: Should Landlords be Filing 1099s for Service Providers?