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- Keywords Solid phase extraction;HPLC;Sulphur ureides herbicides;Water quality; 固相萃取;高效液相色谱法;磺酰脲类除草剂;水质;
- Sulphur ureides herbicides 磺酰脲类除草剂
- Sulphur can be used to make gunpowder. 硫磺可以用来制造火药。
- Sulphur was not identified as an element until1810. 1810年以前还没有认出硫是一种元素。
- This medicine smacks of sulphur. 这种药带有一点硫磺气味。
- Are herbicides hazardous to your health? 除草剂对你的健康是危险?
- Sulphur is a constituent of gunpowder. 硫是火药的组分。
- New herbicides and pesticides were developed. 新型除草剂与杀虫剂得到开发。
- Most herbicides were degraded and run off in soil. 大部分除草剂在土壤环境中被降解或流失。
- Sulphur gases were emitted by the volcano. 硫磺气体由火山喷发出来。
- Sand, but blue as the flame of burning sulphur. 但是蓝得象是硫磺燃烧产生的火焰。
- Sulphur status, in general, is satisfactory. 硫的状况一般较好。
- Examples: Lithia, saline, and sulphur waters. 例如：含有氧化锂、盐、磺等物质的矿泉水。
- The calcium reacts with sulphur in the atmosphere. 钙与硫磺在空气中会发生反应。
- Sulphur glycerine can is purify tooth calculous? 磺甘油能去除牙结石吗?
- Resistance of weeds to certain herbicides is beginning to show up. 杂草对某些除草剂的抗药性已显现出来。
- Herbicides are difficult to apply horizontally over long distances. 要在长段距离的水平方向施用除草剂也很困难。
- They claimed that the herbicides would not endanger human life. 他们声称这些除草剂不会危及人的生命。
- Sulphur was not identified as an element until 1810. 1810年以前还没有认出硫是一种元素。
- Herbicides can be used to keep down unwanted plants. 除莠剂可以被用来控制多余的植物的生长。
