Results Sheep spleen polypeptides could significantly stimulate multiplication and transformation of mice's spleen lymphocytes; increased markedly the weight of spleen and the thymus; promoted delayed hypersensitivity; increased the quantity of antibody-producing cells; increased the level of serum hemolysin; promoted the expurgation effect and the phagocytic function of monocyte/macrophage and increased the activity of natural killer.

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By measuring diurnal photosynthesis and transpiration, three urban tree species in Northern China of Sophora japonica, Acer mono Maxim and Platanus orientalis were studied so as to appraise theirs alleviative effect on urban heat island and their ecological benefits of carbon dioxide absorbing capacity, oxygen producing, and cooling and humidification.

選擇華北地區(qū)3種常見的城市綠化樹種國槐91做a免费视频、元寶楓、法桐国产毛片小视频，測定其光合速率及蒸騰強(qiáng)度视频一区二区红樱桃网站，據(jù)此估算其固碳量、釋氧量和降溫增濕量草草无吗www，并量化評價3種綠化樹種的生態(tài)學(xué)效應(yīng)及對城市&熱島效應(yīng)&的減緩作用18岁以下禁看,黄片，時間尺度為日。

By injecting commercially pure argon to make pressure in furnace up to 66.66 kPa and controlling refining temperature between 1 450 ℃ to 1 500 ℃, adding Mg-Ca alloy 50 kg/t and fluxed additions CaF\-2 11 kg/t, after refining the phosphorus content in steel 00Cr18Ni10 further decreased to (50～60)×10 -6, and oxygen and sulphur content in steel decreased to (4～6)×10 -6 and 15×10 -6 respectively.

采用CaC2 CaF2 法脫磷容易增碳日本三级日本成网人站，使后期冶煉工藝復(fù)雜一区二区中文字幕aV在线，因此最好在吹氧前使用；CaC2 CaF2 也可用作噴吹SiCa粉脫磷時的覆蓋渣亚洲三级黄片啊啊啊啊啊啊啊啊啊，可起到保持還原氣氛的作用Av无码一级A片在线播放。SiCa CaF2 法是唯一在工業(yè)規(guī)模上有少量應(yīng)用的還原脫磷法，而且氧化脫除增加的硅比較容易在线观看自拍日韩欧美视频网站大全。

The reinforcement of phosphoaluminate composite cement with nano carbon tube and its effect on the mechanical properties were studied in this paper.

主要研究了納米碳管對磷鋁酸鹽復(fù)合水泥增韌作用及對其力學(xué)性能的影響欧美一级性交网站。