坡度和高程是土地资源固有的二个重要环境因子，对土地利用和土地生产力有直接作用。
Nature slope and sea level elevation are two important intrinsic environmental factors of land resource which have some direct effects on the use and productive forces of land.
SST是海洋作用于大气的最直接的因子，是海洋-大气运动系统中的一个重要变量。
SST is the most direct factor in the course of ocean affecting atmosphere, and it's an important variable in the ocean-atmosphere system.
它是人类活动作用于自然环境的主要途径之一，是历史时期土地覆被变化最直接和主要的驱动因子。
It is one of the main methods by which the human activities have effect on the environment and the most direct and important factor that drives land cover to change in history.
生长激素通过直接与卵巢上生长激素受体结合，或者借助胰岛素样生长因子的作用影响卵巢功能。
By directly binding to receptors on the ovary or through insulin like growth factor (IGF), growth hormone (gh) ACTS on the ovary.
进一步研究分析得出结论，生长激素的作用强度与治疗后胰岛素样生长因子i的增加程度直接相关。
Further analysis showed that the magnitude of growth hormone's effects was directly related to the extent that insulin-like growth factor-I increased with therapy.
实验结果证实，LAK细胞的杀伤是由多种因素参与的，杀伤时既有因子作用，又有直接接触杀伤。
It was shown that the cytotoxicity of LAK cells was mediated by some factors secreted by LAK cells and effects of direct contact with targets.
血管内皮生长因子(VEGF)是目前所知的作用最强的促血管生成因子之一，它可以直接或间接地参与血管生成的每个环节。
Vascular endothelial growth factor (VEGF) is one of the most powerful pro-angiogenesis factor at present, which can participate in each link of the angiogenesis directly or indirectly.
结论内毒素诱导库普弗细胞释放的可溶性因子作用一定时间后可直接对肝细胞造成损伤。
ConclusionThe soluble factors released by Kupffer cells, which were activated by LPS, could cause direct hepatocytes injury.
目的：细胞因子在牙周组织破坏机制中具有重要的免疫调节作用和直接介导作用。
Objective:The cytokine has an effect of immunoregulation and immediate induction in the destruction pathology of periodontitis.
目前认为内毒素介导细胞的反应通过两个途径：细胞因子的间接作用及对细胞的直接作用。
Now there are two ways in endotoxin induced cellular response: the indirect way of cytokines and the direct way.
目前认为内毒素介导细胞的反应通过两个途径：细胞因子的间接作用及对细胞的直接作用。
Now there are two ways in endotoxin induced cellular response: the indirect way of cytokines and the direct way.
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