They used special microfibers, rather than coarse bits of gravel and sand, to strengthen the cement.
他们用特殊的超细纤维来替代粗糙的砂石颗粒，以强化水泥。
This is an image of an endothelial cell attached to synthetic microfibers, stained with microtubules, F-actin and nuclei.
这是一张附加在人造纤维上内皮细胞的照片，它用微管的、F -肌动蛋白和核心来染色。
After removing core layer, regular hollow structure of microfibers can be observed by scanning electron microscopy tests.
去除芯层后，通过扫描电镜测试，可观察到结构规整的中空超细纤维。
Endothelial cell attached to synthetic microfibers, stained with microtubules, F-actin and nuclei (2500x), Fluorescence, confocal.
附着在合成超细纤维上的内皮细胞，微管、肌动蛋白和胞核已染色(2500倍)，荧光和激光共焦显微镜。
Endothelial cell attached to synthetic microfibers, stained with microtubules, F-actin and nuclei (2500x), Fluorescence, confocal.
附着在合成超细纤维上的内皮细胞，微管、肌动蛋白和胞核已染色(2500倍)，荧光和激光共焦显微镜。
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