Insecticidal mechanism of this unique product, add the highly active anti-permeability factor in reconciliation factor, with strong contact and stomach toxicity.
本产品杀虫机理独特，添加高活性渗透因子和解抗因子，具有很强的触杀和胃毒作用。
Objective: vascular endothelial growth factor (VEGF) also is named vascular permeability factor, which is one of the important angiogenesis factors and mainly produced by vascular endothelial cells.
目的：血管内皮生长因子(VEGF)也称血管渗透因子，是一种重要的血管生成因子，主要由血管内皮细胞产生。
Research mechanism of diffusion and infiltration of concrete, analyze the main influence factor of the concrete permeability and summarized the method of testing of the penetrating index of concrete.
研究了水、氯离子及气体在混凝土中的渗透与扩散的机理，分析了影响混凝土渗透性的主要因素及有待进一步研究的方向，并总结了混凝土渗透性指标的测试方法。
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