primary biomass 初级生物量
primary production and biomass 生物量和生产力
primary productivity of biomass 生物量初级生产能力
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。
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