X射线第一次被观察和记录是在1895年，当时德国科学家威尔姆·康拉德·伦琴在使用真空管做实验时意外发现了X射线。与光线和无线电波一样，X射线也是一种电磁辐射。
X-rayswere first observed and documented in 1895 by Wilhelm Conrad Roentgen, a Germanscientist who found them quite by accident when experimenting with vacuumtubes.
为了煽动话语，四方作了精心的编配，收听与记录的设备随处可见，观察、审问、表述等手段一应俱全。
Incitements to speak were orchestrated from all quarters, apparatuses everywhere for listening and recording, procedures for observing, questioning, and formulating.
采用可视化观察与数据同步记录分析相结合的方法，研究了不同压力条件下自然循环系统上升段中的闪蒸现象及其对自然循环稳定性的作用。
Under different pressures the flashing in riser of natural circulation system and its effect on flow stability were studied by the method of visual observation in synchronism with data recording.
对振荡燃烧现象进行了观察和记录，得到了各反应物与振荡燃烧现象的关系。
The phenomenon of the oscillation burning has been observed and recorded, and the relationship of the concentration of the reactant with the frequency of the oscillation has been obtained.
和简•古多尔、戴安•福西、和乔伊与乔治·亚当森夫妇等人采取的方式一样，欧文斯夫妇花了数千小时的时间记录其观察对象行为的最微小细节的变化。
In the manner of Jane Goodall, Dian Fossey, and Joy and George Adamson, the Owenses spent thousands of hours recording the smallest details of their subjects' behavior.
观察和实验的目的是为了验证或阐明某些理论，只有那些被视为与任务相关的观察才应该被记录下来。
Observations and experiments are carried out in order to test or shed light on some theory, and only those observations considered relevant to that task should be recorded.
整个研究期间应严密观察及详细记录各种不良反应，判断与试验药物之间的关系。
The adverse reactions were observed and recorded, and the relationships between the adverse reaction and the study drug were judged.
艺术家与一般画家的区别在于，一般画家用眼睛、头脑和手去观察记录世界，而艺术家是用心灵和感情。
The difference between great artists and average painters is that the latter observe and record the world with their eyes, brains and hands, while the former do it with their soul and passion.
本文利用显微镜观察记录了玻璃中预制小裂纹稳态与非稳态扩展的全过程。
In this paper, we observed and recorded the whole process of stable and unstable cracking of a small pre-crack by using a microscope.
本文的数据来源于包括期初与期末两次开放式问卷调查、访谈、课程学习成果和课堂观察记录。
The main data in this study derive from pre- and post-course written interviews, face-to-face interviews, course products, and field observation notes.
方法采用传统皮内注射试验法与快速皮试仪试验作对照并观察记录。
Methods Used conventional intradermal subcuticular test and high speed allergy test instrument to take penicillin allergy test on children, then compared their response and recorded the data.
方法采用传统皮内注射试验法与快速皮试仪试验作对照并观察记录。
Methods Used conventional intradermal subcuticular test and high speed allergy test instrument to take penicillin allergy test on children, then compared their response and recorded the data.
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