Now that the Dakota Fire Hole is properly constructed, you can partially fill the fire pit chamber with dry combustible kindling materials and light the fire.

现在火坑已经挖好了，我们在坑底放好一些易燃的干燥细枝，然后在坑边上堆好引火柴堆，用火机或引火石点燃火绒，在上边堆柴火把火烧大，然后将这些火推到火坑中即可。

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The paper describes the sequence of mineral products used by the Chinese, mining pit and chamber, mining method and the source of the term "mineral resources".

本文叙述了中国人使用矿产品的先后次序，采矿坑峒、采矿方法及充填工艺的起源，和矿藏一词的由来。

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This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.

介绍了采用控制爆破技术施工位于井底车场及主要运输大巷的信集闭峒室，条件复杂，岩性变化大，要求安全性高。

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Stephen Sondheim may be a Broadway baby, but most of the best revivals of his musicals have been mounted in small-to-medium-size theaters and accompanied by chamber ensembles, not budget-busting pit orchestras.

WSJ: Theater Review: The Subtle Joys of Small-Scale Sondheim