1、

Effects of different Nitrogen, Phosphorus and Potassium Concentration on Production of No-tillage Corn

氮磷钾不同配比对玉米免耕产量的影响

互联网摘选

2、

Purification efficiency of low nitrogen and phosphorus concentration with constructed wetland of saline-alkali soil substratum

盐碱土壤基质人工湿地对低浓度氮磷废水的净化效果

互联网摘选

3、

Chemiluminescence and photon detection for low concentration nitrogen oxide in atmosphere

低浓度氮氧化物的化学发光和检测

互联网摘选

4、

Pilot test on treatment of high concentration nitrogen oxides by high gravity technology;

介绍了氮氧化物排放污染的危害以及氮氧化物控制的方法。

互联网摘选

5、

Effect of electro-catalytic degradation of total nitrogen of the primary and secondary factors as follows: the initial pH value initial concentration of ammonia current density chloride ion concentration.

影响总氮电催化降解的各因素的主次顺序如下:初始pH值氨氮初始浓度电流密度氯离子浓度。

互联网摘选

7、

The optimum concentration of urea nitrogen was 20 ppm, higher or lower than this level were not fit for the growth and reproduction of the diatoms.

尿素态氮的浓度以20ppm最适宜,过高过低对硅藻的生长繁殖都不利。

互联网摘选

8、

The Development of a Monitor for UDMH and Nitrogen Dioxide of High Concentration in Air

空气中高浓度偏二甲肼和二氧化氮监测仪的研制

互联网摘选

9、

The concentration of nitrogen dioxide gas could be automatically and continuously measured by the system, through program control.

通过程序控制,该系统可以自动连续对二氧化氮气体浓度进行测量。

互联网摘选

10、

The concentration of nitrogen dioxide in Beijing's air was reduced by an average of 20 per cent.

北京空气中二氧化氮的含量平均降低了20%。

互联网摘选

  • 今日热词
  • 热门搜索

英语网英语词典(dict.25820.com)为您提供在线翻译英语词典单词大全英译汉汉译英等英语服务!可按单词字数词义分类查询。支持lj:关键词格式查询例句。

用户反馈
请选择反馈类型(可多选):
您的联系方式:
反馈内容:
提交成功 小编会尽快处理
回到顶部
点击反馈