Transmission electron microscopes (TEM) fire beams of electrons straight through prepared samples of cells, picking up fine details of the tiny structures within.
透射电子显微镜发出电子束直接打向细胞样本，得到细胞的精细结构。
On the basis of experiment, the influence of impressed electromagnetic field on fire transmission speed and overpressure in gas explosion was investigated.
在实验的基础上，研究了外加电磁场对瓦斯爆炸过程中火焰传播速度和超压的影响。
On the basis of experiment, the influence of wall roughness on fire transmission and overpressure in gas explosion was investigated.
在试验的基础上，研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
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