Abstract : according to observation and study , the paleokarstifications of ordovician could be classified into 6 periods , i . e . depositional karstification , weathering curst karstification , burial karstification , semi - burial structural karstification , second burial karstification stage , its karstic types have mainly deposition karst , emergence karst , burial karst , wqueezing - water and structural karst or hot - water karst , and its karst - rocks can be distributed to two kinds of types , i . e . karst - sedimentary rock and karst - regenerated rock , and further to 8 subcategories and 5 sub - sub - categories in the north of anhui , china 文摘:研究表明，皖北奥陶系古岩溶可划分为沉积岩溶作用期、风化壳岩溶作用期、埋藏岩溶作用期、构造岩溶作用期和二次埋藏岩溶作用期；其岩溶类型主要有沉积岩溶、风化壳岩溶、埋藏岩溶或压释水岩溶和构造岩溶或热水岩溶四种类型；其岩溶岩包括岩溶沉积岩和岩溶改造岩两个大类，并可进一步划分出8个亚类和5个子亚类。
This product usesthe fm radio set code decoding system , has the ultra strongantijamming ability and the extremely low power loss , the reactionrate is keen , the highest synchronous speed amounts to for 1 1 , 000second , can satisfy photographic camera of each kind of type shuttersynchronized flash photography request 该产品采用调频无线电编码解码系统，有超强的抗干扰能力和极低的功耗，反应速度灵敏，最高同步速度达1 1000秒，能满足各种类型快门之照相机的同步闪光拍摄要求。
Content : from the nineties of 20th century , the wave of chinese enterprise capital management is urging . a11 kinds of types are appearing one after another . the spread of capital management , as an important method of development and reform , also as an innovation of system , will contribute to the adjustment of economic structure , the best installation of resource . it is of great significance to enhance the competing power and to realize the converge of superiority . in recent years , the theoretical and practical class has unprecedingly focused on the research of capital management 正文：二十世纪九十年代以来，我国企业资本运营方兴未艾，兼并、收购、股份制改造、分立、剥离、公司控制等各种资本运营方式层出不穷，资本运营作为企业发展和改革的重要途径以及一种制度创新，在我国的大力开展，将有利于调整经济结构，促进资源优化配置，对增强企业市场竞争力和实现企业优势集中等都具有十分重要的意义。
Vimentin is a kind of type iiiinterfilament and has high structural homogenity with c - fos , c - jun and creb . vimentin also modulates translocation of some signal molecule . whether vimentin is a downstream event of plc - 1 pathway and whether vimentin is an interchange site between plc - 1 pathway and other signal pathways needs further confirmation by molecular biology analysis such as yeast two - hybrid system and western blot 实验结果显示：经过egf刺激24小时后，相对于野生型mef组，敲除型mef组的2一de图谱中代表vimeniin的蛋白斑点消失，暗示缺失plc一y1基因可能直接或间接导致了vimentin的不表达， vimentin是否是plc一1通路的下游事件，以及是否是plc一yl通路与其他信号通路的交叉点，尚需结合其他方法进行深入研究。
According to observation and study , the paleokarstifications of ordovician could be classified into 6 periods , i . e . depositional karstification , weathering curst karstification , burial karstification , semi - burial structural karstification , second burial karstification stage , its karstic types have mainly deposition karst , emergence karst , burial karst , wqueezing - water and structural karst or hot - water karst , and its karst - rocks can be distributed to two kinds of types , i . e . karst - sedimentary rock and karst - regenerated rock , and further to 8 subcategories and 5 sub - sub - categories in the north of anhui , china 研究表明，皖北奥陶系古岩溶可划分为沉积岩溶作用期、风化壳岩溶作用期、埋藏岩溶作用期、构造岩溶作用期和二次埋藏岩溶作用期；其岩溶类型主要有沉积岩溶、风化壳岩溶、埋藏岩溶或压释水岩溶和构造岩溶或热水岩溶四种类型；其岩溶岩包括岩溶沉积岩和岩溶改造岩两个大类，并可进一步划分出8个亚类和5个子亚类。
