求翻译：2. 2. 3 ATRA和紫杉醇复合药物对S-D大鼠主动脉内皮细胞增殖的实验结果 根据以上结果可以判定：ATRA在100nmol/L时对血管内皮细胞有最大的增殖作用，而紫杉醇在不同浓度时对血管内皮的抑制作用不同。观察ATRA在100 nmol/L与不同浓度的紫杉醇合用对血管内皮细胞的作用，实验结果：ATRA 100nmol/L与不同浓度的紫杉醇合用，随着紫杉醇浓度的不断增加，两者对S-D大鼠主动脉内皮细胞的增殖作用逐渐减弱，ATRA100 nmol/L 与紫杉醇1nmol/L合用对内皮细胞的增殖作用最强，增殖率为41.9%（P＜0.01），ATRA100 nmol/L 与紫杉醇10nmol/L合用对S-D大鼠主动脉内皮细胞的增殖率为41.3%，两者比较无统计学差异（P=0.082）。当紫杉醇的浓度达1000 nmol/L时，ATRA 100nmol/L与紫杉醇合用对S-D大鼠主动脉内皮细胞不但无增殖作用，反而有轻度抑制作用，其抑制率为11.9%，与对照组比较有明显的统计学差异（P＜0.01）。是什么意思？

2.2. 3 compound drug paclitaxel and ATRA on proliferation of S-D rat aortic endothelial cells results according to the above result can be adjudged: when 100nmol/L ATRA on proliferation of cultured vascular endothelial cells have the greatest effect, and paclitaxel for inhibition of vascular endothelial different at different concentrations. Observation ATRA in 100 nmol/L and different concentration of yew alcohol combined on vascular endothelial cell of role, experimental results: ATRA 100nmol/L and different concentration of yew alcohol combined, as yew alcohol concentration of constantly increased, both on S-D large rats active pulse endothelial cell of proliferation role gradually weakened, ATRA100 nmol/L and yew alcohol 1nmol/L combined on endothelial cell of proliferation role most strong, proliferation rate for 41.9% (P<0.01), ATRA100 nmol/L and yew alcohol 10nmol/L combined on S-D large rats active pulse endothelial cell of proliferation rate for 41.3%, both comparison no statistics differences (P=0.082). When taxol concentrations up to 1000 nmol/L is, combination of paclitaxel and ATRA 100nmol/L on S-D of rat aortic endothelial cells are not only non-proliferation, have mild inhibitory effects, its inhibition rate of 11.9%, compared with control group with significant statistical differences (P<0.01).