New Zealand is an important agricultural country, with cattle farming on the North Isled, while the hilly South Island has more sheep farms.

新兩蘭是一個(gè)重要的農(nóng)業(yè)國(guó)家色色色视频免费网址，北部養(yǎng)牛免费看毛片的网址，而南部山區(qū)養(yǎng)羊居多。 with +名詞+現(xiàn)在分詞/過(guò)去分詞/介詞短語(yǔ)/副詞/動(dòng)詞不定式/形容測(cè)構(gòu)成 with 的復(fù)合結(jié)構(gòu)一级片入口，這種結(jié)構(gòu)通常在句子中作定語(yǔ)或狀語(yǔ)一级二级性爱视频，作狀語(yǔ)時(shí)，表伴隨狀況或原因一本大道黄色视频。

The seismic disasters features and behavior mechanisms of the buriedwater supply pipeline are analyzed by synthesis and the breakage of thepipe joints caused by seismic wave propagation as main disasters mode isled into. The soil-pipe interaction, and the soil-pipe slippage arediscussed. Statistical experience method resulted from earthquakeinvestigations and theoretical methods based on reliability theory areintroduced. The reliability of buried pipeline is researched. The methodfor estimate connective reliability of network by means of Monte Carlesimulation technique and Breadth First Search method is introduced. Theconnective reliability of water supply pipe network is researched.

本文綜合分析了地下供水管道的地震破壞特征和反應(yīng)機(jī)理欧美熟女国产一区二区，引入了以接頭破壞作為主要的破壞模式日本国产精品VA在线观看，并探討了管土間的相互作用和滑移作用等問(wèn)題性欧美18；介紹了根據(jù)震害調(diào)查數(shù)據(jù)回歸的統(tǒng)計(jì)經(jīng)驗(yàn)法和基于可靠性理論的理論分析法，對(duì)地下管道的可靠性進(jìn)行了研究欧美日韩在线观看综合；介紹了利用蒙特卡羅法和網(wǎng)絡(luò)圖論中的廣度優(yōu)先搜索法判定網(wǎng)絡(luò)連通可靠度的方法日本国产欧美，對(duì)供水管網(wǎng)的連通可靠性進(jìn)行了研究；考慮到震害預(yù)測(cè)方法中的許多參數(shù)是隨時(shí)間變化的自拍偷拍1，應(yīng)用灰色理論和概率論人人玩人人摸，建立了基于GIS 的供水管網(wǎng)動(dòng)態(tài)震害預(yù)測(cè)模型。