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- Determination of trace chromium in leaf was studied in direct soild sample injection by flamelcss AAS. 设计了一种简便;实用的固体进样装置;进行无焰原子吸收测定树叶中的痕量铬.
- Abstract： A resilient propagation neural network (RPNN) was first applied in the determination of trace chromium in the passivation solution of copper foil with oscillographic chronopotentiometry. 摘 要： 首次将反弹传播算法神经网络用于铜箔钝化液中痕量铬的示波计时电位法测定。
- SPECTROPHOTOMETRIC DETERMINATION OF TRACE CHROMIUM IN STEEL WITH DBC-ARSENAZO DBC-偶氮胂直接光度法测定钢中微量铬
- I am going to rub up the chromium on the car. 我准备把汽车上的镀铬部件擦亮。
- Study on determination of trace chromium in environmental sample by solvent floatation spectrophotometry 溶剂浮选光度法测定环境样品中痕量铬的研究
- Extraction Catalytic Spectrophotometric Determination of Trace Chromium by Synergetic Catalytic Effect 利用协同催化效应萃取催化光度法测定痕量铬
- ZEEMAN GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRIC DETERMINATION OF TRACE CHROMIUM AND MANGANESE IN HUMAN SERUM 塞曼石墨炉原子吸收法测定血清中痕量铬、锰
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
- Preconcentration of Trace Chromium in Natural Water with Activated Carbon and Its Determination by Colorimetry 活性炭富集比色法测定天然水中痕量铬
- They failed to find any trace of the runaways. 他们未能找到逃跑者的任何踪迹。
- There was barely a trace of salt in the soup. 汤里简直一点盐也没有放。
- The post office tried to trace the lost letter. 邮局设法查出那封丢失的信。
- The kids are learning to trace the letter. 孩子们学描字母。
- He always spoke with a trace of sarcasm. 他说话总带着一丝讽刺。
- Keywords electroplating wastewater;trace chromium;catalytic spectrophotometry;azocarmine B; 电镀废水;痕量铬;催化光度法;偶氮胭脂红B;
- The powerhouse was trace out accurately later on a large scale map. 后来发电站被精确地描画在大比例地图上。
- A faint or fleeting indication; a trace. 模糊的暗示模糊的或一闪即逝的暗示; 迹象
- The country woke from her trace of two hundred years. 这个国家在沉睡了200年之后觉醒过来了。
