真因子

Based on regression analysis between PAR attenuation coefficients, euphotic depths, secci disc and main light attenuators, phytoplankton and organic suspended solid play a main role in regulating the attenuation of light.

对PAR衰减系数、真光层深度、透明度等表观光学参数与主要水色因子进行相关分析发现，水体中浮游藻类和有机颗粒物对西湖水体光学性质影响最大。

Second, because the thoracic duct drainage can be particularly lymphocytes from the large number of T cells in vitro, to reduce its dermal layer deposition, as well as the release of lymphokines, resulting in T-cell subsets change, helper T cells and the inhibition of T-cells ratio decreased the humoral immune function, B cells to produce specific antibodies decreased.

二是因为胸导管引流术可以把淋巴细胞尤其是T细胞大量排出体外，减少其在真皮层内的沉积，以及淋巴因子的释放，从而导致T细胞亚群的改变，辅助性T细胞与抑制性T细胞比值下降，体液免疫功能改变，B细胞产生特异性抗体能力下降。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。