Biochar is a type of charcoal produced by heating crop wastes, wood or other biomass in a simple kiln designed to limit the presence of oxygen.
生物炭是农作物废料、木材或其它生物质在简易窑(为限制氧存量而设计的窑)内经过加热而制成的一种炭。
Mills start with a hard, strong construction grade wood like Douglas fir, and then preservative chemicals are injected under pressure to limit the effects of insect and rot damage.
米尔斯开始用硬，强固的构造像花旗松级木材，然后防腐剂化学品的压力之下，以限制昆虫和腐烂造成的损害减少注射。
There are several things you can do to limit your exposure to wood smoke.
你可以做一些事来限制你对木材烟雾的暴露。
Too many books limit themselves to the first (glossy photos of finished buildings), so Solid wood is a valuable book for architects interested in designing with wood.
太多的书把自己局限于第一章(光泽照片成品建筑)，所以《实木》对于建筑师来说价值非凡。
Use stair crackajack wood matched with ingenious design of slimming, bringing unprecedented limit enjoyment to you, it's the necessity choose of beauty and slimming, spa massage center.
选用一级上等木材再配上精巧的纤体设计，带给你前所未有的极限享受，是美容、纤体、水疗按摩中心的必然之选。
With limit value method, the paper has evaluated the largest stress and its site, and supplied theoretical basis for use of wood based material in architectural engineering.
用极值法求出最大应力的位置和大小，为木材和人造板在建筑上的应用提供理论依据。
Examples where lower limit values have recently been proposed include wood dust, respirable silica, and beryllium.
例如木材灰、可呼吸性二氧化矽和铍为最近被提出具较低阈值的例子。
Examples where lower limit values have recently been proposed include wood dust, respirable silica, and beryllium.
例如木材灰、可呼吸性二氧化矽和铍为最近被提出具较低阈值的例子。
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