Nonmetal aggregate floor hardener is made of nonmetal aggregate, special cement and other addictives of a certain grain degree. It can be used as soon as the bag used to pack the hardener is opened.

非金属骨料地面硬化剂由一定颗粒级配比的非金属骨料、特种水泥、其它辅料和外加剂组成，开袋即可使用。

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There are likely multiple factors at play, but the most notable is this: Whole grain foods pack in more fiber and an overall stronger nutritional package than their refined-grain counterparts.

这里有多种因素在起作用，而其中最为主要的是：全麦食品相较于粗粮含有更多的纤维成分。

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There was the pack on her back, the grain bag containing the piece of salt pork, the liver the butcher had given her, the dog-meat, the soup bones.

她的背上还背着一个米袋，里面装着一块腌肉，屠户给她的肝、狗食、汤骨。

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In this configuration, the HTP is passed over a catalyst pack to decompose it into steam and oxygen, but instead of igniting a fuel grain, this superhot gas is allowed simply to vent through the chamber nozzle.

BBC: Science & Environment