The primary biomass used for surfactant production usually is as follows: cellulose, lignin, starch, chitin, oil and fat and pine oleoresin(an exudate of pine trees) and so on.
开发表面活性剂的生物质资源有纤维素、木质素、淀粉、甲壳素、油脂和松脂等。
The prediction of current primary forest showed that it was steady during the next 300 year period, the number of trees and the biomass of Korean pine changed very little.
对现实原始林预测显示，森林未来300年变化稳定，红松株数和生物量变化很小。
Biomass energy is such an important part of energy that to study on developing and utilizing of biomass energy is a primary task for every country all over the world.
生物质能源日渐成为生活中的主要能源，研究开发利用生物质能这种可再生能源已经成为世界各国的一项重要任务。
Biomass increment, net primary production, and their allocation of the lower subtropical evergreen broad-leaved forest in Heishiding natural reserve were studied.
本文研究了黑石顶自然保护区南亚热带常绿阔叶林的生物量增量及其分配规律，净第一性生产量及其分配规律。
Abstract: Biochar is a kind of carbon-rich substance which is produced by using waste biomass of agro forestry as a primary material pyrolyzed under the condition of hypoxia.
摘要生物质炭是农林业废弃的生物质在缺氧条件下热解形成的富碳产物。
Abstract: Biochar is a kind of carbon-rich substance which is produced by using waste biomass of agro forestry as a primary material pyrolyzed under the condition of hypoxia.
摘要：生物质炭是农林业废弃的生物质在缺氧条件下热解形成的富碳产物。
The primary biomass of the grassland community decreased with increasing grazing intensity.
较大的放牧压力下，群落中适口性差、耐牧的杂类草植物渐趋增加。
In the 15-year-old community and artificial community, died fine root biomass dynamic was similar with that of the primary community.
人为干扰较大的1 5年生群落和人工群落活细根现存量在各个月份出现不规律的变化，死细根现存量与原始林有类似的变化规律。
In the 15-year-old community and artificial community, died fine root biomass dynamic was similar with that of the primary community.
人为干扰较大的1 5年生群落和人工群落活细根现存量在各个月份出现不规律的变化，死细根现存量与原始林有类似的变化规律。
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