查询词典 biomass

BCC is composed of anthracite coals as the raw coal,haulm of the corn as the biomass and loess as the cementing agent.

原煤选用无烟煤，生物质选用玉米秸秆，黏结剂选用黄土，制备生物质型煤。

I determined that densities and biomass of herbivorous mammals in Nagarahole were comparable to some of the best East African Savannah areas.

我在这里发现，食草哺乳动物的种群密度与生物量，堪与状况最好的东非大草原地区相比。

Secondary production is defined as the rate of production of new biomass by heterotrophic organisms.

次级生产力的定义是异养有机体的新生物量的生产速率。

Secondary production Secondary production is defined as the rate of production of new biomass by heterotrophic organisms.

次级生产力次级生产力的定义是异养有机体的新生物量的生产速率。

Differences in soil heterotrophic respiration between forests were associated with differences in quantity and quality of organic inputs, biomass and activity of roots, and content and components of soil organic carbon.

不同森林土壤异养呼吸通量的差异主要与枯落物数量和质量、土壤有机质数量和质量的差异有关。

For the development of effective catalysts to be used in biomass gasification ,NiO nanoparticles were prepared by a homogeneous precipitation method involving an aqueous solution of nickel nitrate hexahydrate and urea.

为研制生物质气化用纳米N iO催化剂，文中以六水合硝酸镍为原料、尿素为沉淀剂，采用均匀沉淀法制备了纳米N iO，并利用TGA，XRD，TEM等分析手段对前驱体和产品的性能进行了表征。

In this dissertation, key technologies in ethanol production from lignocellulosic biomass including pretreatment, enzymatic hydrolysis of cellulose and hemicellulose, ethanol fermentation from hexose and pentose, and comprehensive utilization of lignocellulosic feedstock were investigated.

本文对木质纤维原料的预处理、纤维素和半纤维素的水解糖化、利用己糖、戊糖发酵乙醇、以及木质纤维原料的综合利用等关键技术进行了系统研究。

Densities of over 60 hoofed animals for every square kilometre, adding up to a live animal biomass of 15,000 kilograms.

每平方千米有蹄类动物的数量超过60只，加起来的活动物生物量可达15 000千克。

By using four sample fields in Jiusheng village, Sandao town and Baiquan county, the paper studied the effects of different windbreak belt structures in hummock and hill district on biodiversity by means of the index, such as species richness , diversity index and biomass.

文章以拜泉县三道镇久胜村的4块样地为例，从物种丰富度指数、多样性指数、生物量等方面研究了漫岗丘陵区不同防护林结构对林下植物生物多样性的影响。

Enzymes in biohydrogen production, types of fermentation, researches of hydrogenase gene and biohydrogen production with unused biomass were introduced.

以农作物秸秆等廉价资源为原料，与废弃生物质处理相结合，采用厌氧发酵法制取氢气的技术具有很大的潜力和发展空间。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。