In order to understand the mechanism of smoldering of polyurethane foam in a semi-closed space, experiments are conducted with horizontally-oriented polyurethane foam.
为了了解在半封闭空间中阴燃的机制，对水平放置在实验体中的聚氨酯泡沫进行了阴燃实验研究。
We used iron shutters that almost disappear when folded in the daytime and semi-transparently divide the space in the nighttime when the store is closed.
我们使用了铁质百叶窗，在白天折叠的时候几乎消失，当商店晚上关闭的时候又半透明地隐约分隔了空间。
Locany S-Closed Space is extremally disconnected if and only if every semi-regular S-closed set relative to X is Closed set.
本注记给出局部S-闭空间X是极不连通的充要条件是X中每个相对X是S-闭的半正则于集是闭集。
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