1.
Appraisals on the safety for use of agricultural chemicals, such as pesticides and chemical fertilizers, shall be examined and approved by the administrative department of public health under the State Council.
农药、化肥等农用化学物质的安全性评价，必须经国务院卫生行政部门审查同意。
2.
a chemical substance that repels.
有驱逐作用的化学物质。
3.
The abusive use of chemical substances in agriculture also causes/leads to pollution.
农业方面化学物质使用的不断增加也造成了污染。
4.
Optimal spatial decision of cropland bio-energy intensive application
农田生物质能集约利用空间优化决策
5.
High Efficiency and Pollution-free Resources Utilization of Agricultural and Forest Biomass
农林生物质的高效、无公害、资源化利用
6.
chemicals that interact to form a new compound
相互作用形成新化合物的化学物质
7.
Developing Biorefinery by Utilizing Agriculture and Forestry Biomass Resources: Striding Forward the “Carbohydrate” Era;
利用可再生农林生物质资源的炼油厂——推动化学工业迈入“碳水化合物”新时代
8.
This protection of data would be available to all pharmaceutical and agricultural products which utilize new chemical entities, irrespective of whether they were patent-protected or not.
所有使用新化学成份的药品或农业化学物质均可受到此种数据保护，无论其是否受专利保护。
9.
Exploration and Practice on Teaching Methods of Biochemistry of Institutions of Higher Agricultural Learning
提高农业院校生物化学教学质量的措施
10.
Make use of the teaching quality of the junior high school biology of the resources exaltation of the village environment;
利用农村环境资源提高初中生物学教学质量
11.
A chemical, such as a hormone, a fungicide, or an insecticide, that improves the production of crops.
农药，农用化学品用来增加作物产量的化学品，如激素、杀菌剂、杀虫剂
12.
Extract the Active Ingredient from Agricultural Antibiotic120 and Quantitative Analysis
农抗120活性物质提取及化学定量分析方法研究
13.
Chemical alteration of a substance within the body, as by the action of enzymes.
生物转化体内物质的化学转化，如通过酶的作用
14.
Chemical Conversions of Biomass into Aroma Chemicals--the Use of Lactic Acid
生物质化学转化制备香料——乳酸的利用
15.
Applications of Quantum Chemistry Methods in the Calculation of Physical、Chemical、Biological Properties of Compounds
量子化学方法在计算化合物物理、化学、生物学性质中的应用
16.
Chemicals in the body break down our food into useful substances.
我们体内的化学物质分解成有用的物质。
17.
Chemistry is the study of how substances act on each other to produce new substances.
化学是研究物质如何相互作用而生成新的物质。
18.
Effects of Agricultural Utilization of Sewage Sludge on Soil Physical and Chemical Properties and Crop Output
污泥农用对土壤理化性质及作物产量的影响