The fibroblast also synthesizes elastic fibers, as well as the ground substance of the dermis, which is composed of glycosaminoglycans or acid mucopolysaccharides.
成纤维细胞还能合成弹性纤维和真皮基质。真皮基质由糖胺聚糖和酸性粘多糖组成。
If you see patches of acid yellow flowers, single flowers on short stems almost hugging the ground, they are winter aconite.
如果你看到一片片薄薄的黄花，低矮的枝干上一丛花朵几乎要垂到地上，那就是冬乌。
Acid washing (it is suitable for the ground with too much paint) : use hydrochloric acid with quality percent of 10 ~ 15% to wash the concrete surface.
酸洗法(适用于油漆较多的地面)：用质量分数为10 ~ 15%的盐酸清洗混凝土表面。
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