Wastewater treatment by two-stage biological filter with aeration

Study on the Removal Manganese from Groundwater with Biological Filter Media

地下水除锰的生物作用试验

Study of New Biological Filter Media in Sewage Disposal

新型污水生物填料研究

Practice of Biological Filter Bed Technique Used in Treating Municipal Sewage

生物渗滤床技术处理生活污水

Pilot-Scale Study on Urban Runoff Treatment Using Biological Filter

滤池反冲洗废水回用生产性试验研究生态滤沟处理城市降雨径流的中试研究

The biological value ( BV) is 47.88-49.54%;

生理价值（BV）为47.90～49.50%；

Evaluation on phosphorus relative biological value of dicalcium phosphate nanoparticle in rats

纳米磷酸氢钙中磷在大鼠中的相对效价评定

The protein in dry food, therefore, earns a lower biological value score.

饲料中的蛋白质生物价值较低。

The biological value assessment of phosphorus in feeds for swine

猪饲料磷生物学价值的评定

The Cognition of the Biological Value in Pre-Qin Times

先秦时代对生物价值的认识

Effect of Dietary Copper Levels on Biological Value of Iron and Zinc

日粮铜水平对铁、锌生物效价影响的研究

Study on relative biological value of different phosphorus sources in carp

鲤鱼对不同磷源磷生物学利用率的研究

Is the power of the temple in the biological field enough to shield them up?

难道庙宇中生物场的力量足以把它们屏蔽起来？

The other is that of utilizing the thickness of the concrete as an efficient biological shield against nuclear radiation.

另一种是利用混凝土的厚度，作为防止核辐射的一个有效的生物保护罩。

Five differences between the Chinese agriculture and the western agriculture in agricultural ideas, resource conditions, agricultural technology system, type of operation, biological cycle and so on were discussed.

论述了中西方农业在农学思想、资源条件、农业技术体系、经营方式、生物循环等五方面的差异。

Studies on the stand net productivity and biological cycle of nutrient elements in the 29 year old plantations of Chinese fir on different rotations

不同栽杉代数29年生杉木林净生产力及营养元素生物循环的研究

Research on Biological Cycle of Nutrient Elements in Plantation of Rubber Intercropped with Amomum Longiligulare

橡胶与砂仁间作复合生态系统营养元素循环的研究

Health food is characterized by biological cycle adjustment, disease prevention, health improvement, which is food of important health function for human physiology.

保健食品是具有与生物防御、生物节律调整、防止疾病、恢复健康等有关的功能因素，经设计加工，对生物体有明显调整功能的食品。

Accumulation and biological cycle of nitrogen and phosphorus in Pinus taiwanensis community in Wuyi Mountains

福建武夷山黄山松群落的氮、磷累积和循环

The concentration characteristics of mineral elements and biological cycle in the terrestrial solonchak plants on the beach of Jiangsu Province

江苏海岸带陆生盐土植物矿质元素含量的特点及生物循环

Advances in research on biological cycle of Se and active se-containing substances

硒的生物循环及含硒活性物质研究进展