病毒粒子经1％醋酸铀负染后镜检，病毒粒子分为有囊膜和完全或部分失去囊膜两种。
The viral particles, negatively stained with 1% uranium acetate, observed under transmission microscope, appeared to be enveloped or unenveloped because of the envelope being damaged.
行500A超薄切片，醋酸铀和枸橼酸铅染色，JEM-100CX透射电子显微镜观察并拍片。
The prepared tissue was cut at 500A and stained with uranyl acetate andlead citrate, and then observed under JEM-100CX transmission electron microscope and photographed.
超薄切片经醋酸双氧铀及枸椽酸铅染色，在透射电镜下观察被动吸烟对神经上皮细胞超微结构的影响；
The other embryos were sliced into ultraslices, stained with both uranyl acetate and lead citrate, to observe the effects of passive smoking on the ultrastructure of neural epithelia with TEM.
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