The other embryos were sliced into ultraslices, stained with both uranyl acetate and leadcitrate, to observe the effects of passive smoking on the ultrastructure of neural epithelia with TEM.
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；
2
Results: (1) The rats treated with calcium citrate and calcium acetate enhanced lead apparent absorptivity, as compared with calcium carbonate.
结果： （1 ）大鼠摄入醋酸钙和柠檬酸钙后对铅的表观吸收率高于碳酸钙组的大鼠。
3
Citrate is very effective in preventing blood from clotting; however, its use can lead to life-threatening low calcium levels.