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1·Prescribed burning, fires set on purpose, is a common, if risky, method.

即是故意纵火，虽然涉及危险，却是常见的做法。

2·Today prescribed burning has become an important tools in forest and resources management.

目前计划火烧已成为森林经营和资源管理的一项重要措施。

3·With the method of prescribed burning, the effects of burning on Leymus chinensis population in Inner Mongolia steppe were discussed.

用控制火烧的方法，研究了火烧对内蒙古草原羊草种群的影响。

4·The importance and function of prescribed burning, preparation work before prescribed burning and items for attention and operation tips are presented in detail.

本文详细阐述了计划火烧的意义和作用、计划火烧前的准备工作，并提出了计划火烧的注意事项及实际操作要领。

5·But I make this matzo without leaven in my wood-burning oven under the prescribed 18 minutes from start to finish.

但是我做这些未发酵面包，不用发酵剂，在木头做燃料的烤箱里，从开始到结束用不了犹太教规定的18分钟。