Results showed activities of tourists have hardened the soil,reduced its organism content and water content, and increased its unit weight. Basically theseverity of the effects increases with the increase of tourist activity.The former scene of arborescence is now a tourist dense area.

對(duì)森林公園土壤的研究選擇了四個(gè)景區(qū)：古驛道中文字幕黄色电影免费看、毛竹林、竹類園和防火瞭望臺(tái)一级伦奷视频A片试看30秒，研究結(jié)果表明游客的活動(dòng)使土壤的緊實(shí)度增加欧美成aⅴ人高清喷水，有機(jī)質(zhì)含量從2.33％減少到1.33％，土壤含水率34.42％從降低到21.87％高清无码黄色视频在线关看，土壤容重從1.13 g／cm3增加到1.38 g／cm3亚洲激情一区二区三区四区，樣地受影響的嚴(yán)重程度依次為竹類園＞古驛道＞防火瞭望臺(tái)＞毛竹林。

This design for protects from fire the volume curtain gate intelligence control device design, also realizes the monolithic integrated circuit automatic control fire protection volume curtain gate, this design selects cpu is 89c52, the smallest system has the replacement and the address lock saves the function.

本設(shè)計(jì)為防火卷簾門智能控制裝置設(shè)計(jì)久久99精品久久久久久67194，既實(shí)現(xiàn)單片機(jī)自動(dòng)控制防火卷簾門222www免费观看，本設(shè)計(jì)選用的cpu為89c52，最小系統(tǒng)具有復(fù)位和地址鎖存功能婷婷操操b。

To achieve natural ventilation, natural lighting at the same time meet the fire requirements, a multi-purpose indoor staircases complexes, staircases wells Road Shanpian caesium potassium use high-intensity fire glass, making glass ventilation Road indoor staircases at the same time addressing the needs of the natural lighting.

為實(shí)現(xiàn)自然通風(fēng)疯狂欧美黑粗硬大插进去了、自然采光同時(shí)又滿足防火要求，室內(nèi)樓梯間成為一個(gè)多功能綜合體激情另类小说，樓梯間井道利用高強(qiáng)度單片銫鉀防火玻璃建成一级黄色片美国，使得玻璃通風(fēng)道同時(shí)解決了室內(nèi)樓梯間的自然采光需求。

Melamine Cyanurate is a white crystal power with is a excellent non-halogen N flame product is mainly used as non-halogen flame retardant for synthetic resin,synthetic rubber and plastic products;solid lubricant in lubricating oil and grease;fire retardant in fire-proofing coating;lubricant in lubricating oil and grease;fire retardant in fire-proofing coating;lubricant in the cosmetic.

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The component,effect and flame retardant mechanism of dilatant fire retardant coatings for steel structures were described.

本文綜述了鋼結(jié)構(gòu)防火涂料的分類及特點(diǎn)人人操一区，論述了膨脹型鋼結(jié)構(gòu)防火涂料的組成、作用及阻燃機(jī)理欧美视频性交。

I started plants from 89 major steel shutter fire production machinery, machine rails, steel splint fire Burkina Faso, linked to the base, O-shutter doors machinery, mechanical sound track, Yemen to set the machinery, garage door machine , Rails machinery, steel door frames machines, door-rolling machines, steel-lined steel equipment, large-scale composite Caigang sandwich board production lines, Caiwa machine, to Yemen machinery, fire composite steel shutter doors machinery, C, Z-beam equipment, 100 kinds of products.

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This study focuses on the "Fire-protection Refuge Facilities" in the field of building fire prevention and safety, via foreign and domestic related research studies in assessment method and current laws and statutes,As well as according to the current domestic status to develop a proper tools of assessment as the foundation of discussion on "Fire-protection Refuge Facilities" performance.

本研究從建筑防火安全的領(lǐng)域「防火避難設(shè)施」方面進(jìn)行研究，藉由國(guó)內(nèi)外文獻(xiàn)相關(guān)評(píng)估方法的研究以及現(xiàn)行法規(guī)規(guī)定性爱五月，并依據(jù)國(guó)內(nèi)現(xiàn)況發(fā)展一套適合之之改造需求評(píng)估工具欧美乱伦视频二区，作為防火避難設(shè)施性能檢討的基礎(chǔ)。

As it is mentioned that the public buildings have complicated structures and occupy a large space in both level surface and height, their fire safety design in the respect of fire compartmentation, safety evacuation, smoke control, construction protection and active fire-protection installations cannot be made according to the national fire protection design code.

但由于此類建筑大多具有面積大99热爱精品九九九九、空間高在线产国产、結(jié)構(gòu)復(fù)雜的特點(diǎn)，其消防設(shè)計(jì)在防火分區(qū)av大陆老熟女性爱、安全疏散玖玖视频在线精品、煙氣控制欧美精品综合性久久影院、結(jié)構(gòu)抗火、消防設(shè)施設(shè)置等多方面都無法執(zhí)行現(xiàn)行國(guó)家規(guī)范的規(guī)定亚洲色无码一区二区三区，對(duì)傳統(tǒng)的&處方式&防火設(shè)計(jì)方法提出了嚴(yán)峻的挑戰(zhàn)仑乱高清免费视频观看AA片，是當(dāng)前建筑防火領(lǐng)域急待解決的難點(diǎn)問題之一。

First of all, this paper analyzes the distributing situation of sectional temperature of two steel frame models within an hour utilizing the transient thermal analyse module of ANSYS;Secondly, carries on the failure analysis to two steel frame models at high temperature and obtains the fire-resistant limit and critical temperature of steel frame, utilizing the static nonlinear analyse module of ANSYS and considering the influence of geometry nonlinearity and material nonlinearity; Finally, according to the fire-protection designing requirement of structure, deduce a method to computer the thickness of fireprotection layer for steel structure and ask out the thickness of fireprotection layer of two steel frame models according to this method .

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Integrated with GPS data, this forest fire prevention data realize fire prevention to detect combustible material buildups and fire controll.

最后融合防火資源數(shù)據(jù)和全球定位系統(tǒng)數(shù)據(jù)67194熟妇人妻欧美日韩，實(shí)現(xiàn)了防火隊(duì)和防火物資等數(shù)據(jù)的融合與操作超碰91欧美。