成对

The shredding of agro-residues, such as corn stalk, straw, wood sawdust and other herbaceous biomass, were investigated in this dissertation. According to the machinery mechanics of shredding, the components, shearing strength and pressive strength of the biomass were analysed in theory, which played a critical role during the shredding process. And the powder was examined by Scanning Electron Microscopy. It was founded that shearing,splitting and grinding force were appropriate for shredding biomass. The results also showed that primary shredding was the bulk shredding model, which was mainly affected by shearing and splitting force, therefore the curly knife and the straight knife were useful; while the fine shredding was the surface shredding model, affected by splitting and grinding force, and the straight knife useful.

本文以农林废弃生物质为研究对象，结合机械力破碎基础理论，从影响其破碎的化学组分和剪切强度、抗压强度等力学角度进行了理论研究，并运用扫描显微镜对破碎产物的微观结构进行了实际分析，结合二者得出如下结论：最适合生物质的施力方式为剪切力、劈碎力和磨削力；生物质粗破碎为体积破碎，主要受剪切力和劈碎力作用，刀片宜设计成弯口刀和单面直刃刀；细破碎为表面破碎，主要受剪切力和磨削力作用，刀片宜设计成双面直刃刀。

To observe the influence of hirudin on the cultured sclera flbroblast and extracellular matrix, and research the mechanism of hirudin treating the diseases caused by the proliferous fibroblast.

实验目的通过观察水蛭素对体外培养的巩膜成纤维细胞及细胞外基质的影响，从而探讨水蛭素防治由成纤维细胞增生引起的疾病的机制。

The results have shown that 16 generations of the pest occurin a year in Beibei, Chongqing. At 15. 4℃-15. 6℃, 20. 1 ℃- 21. 6℃, 24. 4℃- 25. 8℃ and2 9. 6℃- 31. 5℃, theegg, nymph, protonymph and deutonymphstages last, on the ave...

成螨寿命8～42天，每头雌螨平均34.8粒；幼、若、成螨喜在叶底及叶缘分散为害，田间发生以5～6月、10～12月螨量大，对雨水冲刷及农药的抗性远比朱砂叶螨强，有逐步上升为桑园主要害螨之一的趋势。

AIM: Investigation of bio-effects of GM- CSF on periodontal ligament and pupal fibroblasts.

目的：观察GM-CSF对牙周膜成纤维细胞、牙髓成纤维细胞的生物学作用。

Primary culture of goat mammary gland cells could be derived by outgrowth of migrating cells from fragment of tissue. Fibroblast and epithelial cells could be pured according to their different sensibility to trypsin. Complex cultures treated by 0.25% trypsin in Hanks' for 5~7min at 37℃, the dispersed cells were mainly fibroblasts,then the rest treated by 0.15% trypsin-0.02% EDTA in Hanks'for 5~8min at 37℃, the majority cells harvested were mammary epithelial cells.

用组织块培养法可获得良好的山羊乳腺细胞原代培养物；培养的山羊乳腺成纤维细胞比上皮细胞对胰蛋白酶更敏感，据此可在传代过程中将二者分离纯化，获得纯细胞系；混合培养物先用0.25%胰蛋白酶在37℃消化5~7min 所收集的细胞主要为成纤维细胞；再加0.15%胰蛋白酶-0.02鞹A 消化液在37℃继续消化5~6min 所回收的细胞绝大多数为上皮细胞，经过2~3 代，即可得到纯化的乳腺上皮细胞系。

Primary culture of goat mammary gland cells could be derived by outgrowth of migrating cells from fragment of tissue. Fibroblast and epithelial cells could be pured according to their different sensibility to trypsin. Complex cultures treated by 0.25% trypsin in Hanks' for 5~7min at 37℃, the dispersed cells were mainly fibroblasts,then the rest treated by 0.15% trypsin-0.02% EDTA in Hanks'for 5~8min at 37℃, the majority cells harvested were mammary epithelial cells.

用组织块培养法可获得良好的山羊乳腺细胞原代培养物；培养的山羊乳腺成纤维细胞比上皮细胞对胰蛋白酶更敏感，据此可在传代过程中将二者分离纯化，获得纯细胞系；混合培养物先用0.25%胰蛋白酶在37℃消化5~7min 所收集的细胞主要为成纤维细胞；再加0.15%胰蛋白酶-0.02%EDTA 消化液在37℃继续消化5~6min 所回收的细胞绝大多数为上皮细胞，经过2~3 代，即可得到纯化的乳腺上皮细胞系。

Methods: The fibroblasts companying human hepatoma were primarily cultured with explant culture method, first passaged after they spread to the bottom of the culture bottle, and pured by enzyme digestion and repeated strapping the cells were identificated through observing the morphologic change using invert microscope and detecting expression of vimentin, keratin by iMmunohistochemical method.

应用组织块培养法进行人肝癌伴生成纤维细胞的原代培养，细胞铺满培养瓶底后首次传代，通过胰酶消化法和反复贴壁法进行成纤维细胞的纯化；通过倒置显微镜观察细胞形态、免疫组织化学方法检测细胞膜波形蛋白、角蛋白表达情况，对细胞进行鉴定。

RESULTS: After differentiation of human adherent myoblasts by neural induction medium, no cells with a neural cell morphology (ie., small, refractile cell body with dendritic cell extensions) were seen. All remaining myoblasts cultured with neural induction medium, myoblasts with proliferation medium and myotubes with differentiation medium containing 20 mL/L HS were positive for β Tubulin Ⅲ. C2C12 myoblasts were negative for β Tubulin Ⅲ. In contrast, all the above cells were negative for the markers Neurofilament Mr 68×103 and GFAP.

结果：用诱导分化液作用后，未见小的、伴有突起的放射状形态的神经细胞；抗β Tubulin Ⅲ对经神经元胶质细胞诱导分化液作用后的人成肌细胞、增殖培养液培养后的各代人成肌细胞及仅含20 mL/L HS分化液分化形成的肌管细胞染色均为阳性； C2C12细胞β Tubulin Ⅲ抗体染色阴性；上述所有细胞抗Neurofilament Mr 68×103和抗GFAP染色均为阴性。

Flame retardants may interrupt or change the decomposition process in several ways:(1)they may melt at relatively low temperatures and resolidify in the form of a foam, which serves as a barrier to heat transfer from the flame to the substrate;(2) they may be converted upon heating into acids or bases, which catalyze the decomposition of the substrate at lower temperatures than are required for the formation of volatile combustibles;(3 ) they may decompose orsublime upon heating to release large amounts of nonflammable vapors which exclude oxygen from the flame; or (4) they may react with chemicakl species within the flame to stop the combustion reaction.

阻燃剂可以从几个方面干涉或改变织物的分解过程：（1）阻燃剂在相对较低的温度时会熔化，然后重新固化成泡沫状，这样就形成了一个屏障，阻止了从火焰向织物的热传递。（2）阻燃剂受热时会分解成酸或碱，这些酸或碱在低于可生成挥发性可燃物的温度下可以催化织物的分解。（3）阻燃剂在受热时会分解或升华，同时释放出大量不可燃气体，这就阻止了氧气对火焰的供应。（4）阻燃剂可以与火焰中的化学物质起反应，使燃烧反应终止。

The influence of ratio of sagger and ceramic weight,the kiln car and ceramic,the leakage air volume in length in heating zone,the productivity of unit volume,outside sruface temperature of kiln crown,outside surface temperature of kiln wall,firing temperature,difference of firing in firing zone,length on firing zone,utlization factor on heat consumption was analyzed.

本文根据陶瓷隧道热工测定结果，分析了匣钵和瓷重比值、窑车和瓷重比值、漏风量、窑炉单位体积的产量、窑顶外表温度、窑体外表面温度、烧成温度、烧成带温差、加热带长度、窑道利用率对热量消耗的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。