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- helium mass spectrum back pressure leak detection 氦质谱背压检漏
- helium mass spectrum leak detecting 氦质谱查漏
- Leakage Detection Technology by Means of Helium Mass Spectrum for Integral Oil Tank of Wing 机翼整体油箱氦质谱检漏技术
- helium mass spectrum 氦质谱
- Its stucture was investigated through IR,1H NMR and mass spectrum. 用红外光谱、核磁共振氢谱和质谱推测了产物的结构。
- The characteristics of leak detection by the helium mass spec- trometer for large or small size low temperature vessels are analyzed and some comments are suggested. 分析了大、小型低温容器的氦质谱检漏的各自特点及应注意的问题，讨论了部分国产氦质谱检漏仪的应用特点。
- Meanwhile, MS peaks with +3, +4, +5, +6 and +7 charges were formed in mass spectrum under the ESI positive scan mode. 同时在ESI正离子全范围扫描中主要形成带有+3、+4、+5、+6、+7等不同电荷数的质谱峰。
- Dipentene of different origin were analysed by GC-MC and computer autometic request mass spectrum. 采用气质联用仪，微机图谱自动检索对不同来源的双戊烯的化学组成进行了分析。
- Aim:To determine the mass spectrum and the mass spectrometric decomposition process of azodiisobutyronitrile. 目的：确定偶氮二异丁腈的质谱图及其质谱碎裂机理。
- The HPLC was subjected to gradient elution and negtive ion mode was adopted in mass spectrum. 高效液相色谱用梯度洗脱,质谱用负离子模式。
- The application of FAB-MIKES mass spectrum to the determination of amino acid sequenceof peptides was reported. 本文报道了用快原子轰击与质量分离离子动能谱(FAB-MIKES)技术测定三个多肽(七肽、八肽和九肽)中氨基酸的顺序。
- Multiphoton ionization mass spectrum of ammonia-methanol complex cluster and ab initio calculation[J]. 引用该论文 许明坤;张树东;孔祥和;蔡廷栋;姜素蓉.
- helium mass spectrometer leak detection 氦质谱检漏
- UV Laser MPI Spectra and TOF Mass Spectra of Tetramethylsilane[J]. 引用该论文 施德恒;熊永建;陆庆正;余枝广;马兴孝;孔繁敖.
- UV laser MPID time-of-f light mass spectra study on Oxirane[J]. 引用该论文 钱谊乐;方黎;郑海洋;赵亚萍;吴存恺;余技广;秦启宗.
- helium mass spectrometer leak test 氦质谱泄漏试验
- The selection of the desired species(element, isotope, and charge state)is certified by the signature of the entire mass spectrum. 所需物质（元素、同位素及电荷态）的选择，被全部质谱的信号特征所证实。
- helium mass spectrometer leak detector 氦质谱检漏仪
- Through tandem mass spectrum, the results show that heteromorphic leaves are different in photosynthesis and respiration. 通过对差异蛋白点的串联质谱鉴定，发现异形叶在光合及呼吸作用方面存在差异。
- O-chlorophenol/water mixed clusters were studied using both laser multiphoton ionization mass spectrum and supersonic pulsed molecular beam technique. 应用激光多光子电离质谱与超声脉冲分子束技术研究邻氯苯酚-水的混合团簇。
