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- chemical weed killing 化学除草
- Integrating this technology with chemical weed control,the practice suited to mechanization,and saved energy with improved yield. 该技术与化学调控和化学除草技术相配套,适于机械化作业,达到节能高产的目的。
- The state technical standard of chemical weed control in main plantation trees GB/T15783-1995主要造林树种林地化学除草技术规程
- Chemical mechanism of exotic weed invasion. 外来杂草入侵的化学机制
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- weed killing waggon 除草车
- We are doing a chemical experiment. 我们正在做化学实验。
- weed killing wagon 除草车
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Ammonia is a chemical substance. 氨是种化学物质。
- weed killing 灭草
- A chemical substance used to kill insects. 杀虫剂用于杀虫的一种化学物品
- A chemical used to kill pests, especially insects. 杀虫剂，农药用来消灭有害物的一种化学药剂，特别是昆虫
- TECHNOLOGY OF CHEMICAL WEEDING IN FOREST NURSERY 林业苗圃化学除草技术
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- Some chemical compounds can be resolved by heat. 一些化学化合物可以通过加热分解。
- I am not familiar with chemical terms. 我不熟悉化学术语。
