<p> an important area is not the same, of a high standard, including the overpass so places are also high standards. Now we state the actual standard is by large, medium and small cities, cities of different sizes to determine the different standards,chaussure tn pas cher, including in the same city also set an important regional and general area, there are differences. Outdoor drainage national norms are prescribed, prepared in 2006, and the 2011 revision,veste barbour homme, in 2014 and the revision of, and in February 2014 has been officially promulgated. In this standard specification inside has made a very detailed arrangements,barbour 2015, and changes are still very large. Now each province in accordance with the State Council Wen has deployed 23 down, and the Ministry of Construction has issued an outline waterlogging planning guide planning how to compile. Now not to say that a standard raise, like all things immediately follow up, because the underground pipe network is very complex,moncler milano, and underground pipe network is a system problem, you better this period, if it downstream, then the whole system may have Okay, but if you say that this paragraph in the upstream,air max pas cher enfant, it is wide, and you have not changed diameter downstream, then he can not solve system problems, so that the pipe network is to start to finish, the whole system has to be a long-term planning and plan. Friends said several key issues are very much in place, the rapid expansion of the city for a time before the process is indeed more attention to the ground,basket louboutin femme, on the ground is still very inadequate attention to this, including insufficient capital investment, possibly the entire city construction insufficient funds.</p>
<p> and now you see the city spread out in the pie.</p>
<p> then use a little money in the face of the underground pipe network gave planted. But in the process, may ground the problem is easy to solve,louboutin paris, but the problem is precisely the underground difficult to solve, is that once laid pipeline systems are imperfect, or there is a problem somewhere, you then want to question Grilled underground open to solve, and that the price to pay is higher. Zhang Hong: City when pie type of development is less and less water ("CCTV Financial Review," commentator) In addition to outdoor drainage norms,air max pas cher chine, there is a specification called urban drainage project planning,abercrombie e fitch, both of which regulate basically our guide outside the underground pipe network of a standard, in fact,peuterey outlet, is the national standard. In fact, this national standard is now also rising year by year,chaussures pas cher, in April last year, the State Council has notice of a city drainage waterlogging facility construction work, including this notice to put the plan in 2020 it has been listed on the inside. 23 article mentioned something, except on the ground floor on the ground, such as the de facto standard to improve year by year, there is the development and construction of models such as, for example, the ratio of floor area in new construction of hardened ground permeable not less than how much? 40%. We now want to look at our new city building, the old city basically has a lake, some cities were also called sea areas inside the city.</p>
<p> once in a year,hollister homme, said general low standard. I think we can say that low, but I understand the distribution network, that is a case of a year, many of our city still withstand the test of time. Chengshiguanwang year a case does not mean that all the pipes are designed according to a case a year, but the main pipe. River, River should not be the same, including the manifold with the competent difference is there. So might we encounter such a situation,chaussures louboutin, that this city is a once in a year,veste barbour homme, some individual areas are water.</p>
<p> but in most areas there is no water. So I think, can not say that this year, once in the standard is low, it is best not to talk to such a standard to go over the river. Zhang Hong: the vast majority of local executive is the case this year,nike tn pas cher magasin, a minimum standard ("CCTV Financial Review,scarpe hogan outlet," commentator) The standard calculation is very complicated. Just talk privately with Professor Kong, she said that many professionals do not know how this formula should be considered. So, once in a year or once in a few years, my understanding is probably related to rainfall intensity, for example, the probability of a year you throw things is 3, then the probability of you two throw things certainly increase, five years throw things certainly increase the probability of more than 50 years, almost anyone would throw things, this water is the same, probably the largest rainfall year you may encounter, then you may encounter some years than this, so if we put It may be a year to a specific case of the pipeline, it can cope with a case of rainfall a year that the pipe must be less than two years a case, then a case of three years, five years, once in, it is probably the case. We now may be difficult on the whole country, the year was a case of low or high, but we have to admit that, in accordance with national standards is the city least once in a year, then the vast majority of local implementation This is the minimum standard. Kong Yanhong: urban construction with a little money in the "face" on "lining" the importance is not enough ("CCTV Financial Review" Commentator) Now we have national standards have made adjustments, including a case of a year just said, does not mean that all areas of a city is a case of a year.</p>
<p> but it is, we often say in case of a one-year, mainly refers to the underground pipe network of the city, the general said, once in a century flood control standard refers to major rivers, it is a hundred years, though call a case of how many years,abercrombie bologna, but the concept is not exactly the same. For example, urban underground pipe network, we are talking about a case refers to the year rainfall return period is a certain intensity of rainfall is expected, the frequency of it recurring, but Talia method of calculation is not the same. The big trend is the same,chaussure louboutin, but the two are not comparable. From now on the distribution network is concerned.</p>
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