absence and presence

 
       
  • 虚实

absence and presence的用法和样例:

例句

  1. Degradation of azo dye Acid Red B (ARB) over MnO2 in the absence and presence of ultrasonic irradiation has been investigated.
    研究了MnO2、超声(US)单独作用和MnO2+US联合作用降解偶氮染料酸性红B(ARB)的情况。
  2. Then, the binding of DTIC to DNA and DNA bases in the absence and presence of Au nanoparticles has been explored in this work by electrochemical study.
    荧光光谱研究结果表明,阿斯匹林与双链DNA间存在较强的相互作用,与单链DNA的作用较弱。
  3. The electrochemical behavior of the 1,4-Dihydropyridine Derivatives(1,4-DHP) on the GC electrode was studied by cyclic voltammetry in the absence and presence of calf thymus DNA(CT DNA).
    用电化学方法研究了1
  4. Adsorption and Desorption Processes of External Source Copper Ions Using Two Soils in the Absence and Presence of o- Phenylenediamine
    两种土壤中邻苯二胺对铜离子吸附-解吸平衡影响的研究
  5. Palpate auricle for texture, tenderness, and presence of lesions.
    触碰耳廓检查质地、触痛,有无损伤。

absence and presence的海词问答与网友补充:

提问补充

absence and presence的相关资料:

临近单词

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