階地覆蓋 的英文怎麼說
中文拼音 [jiēdefùgě]
階地覆蓋
英文
terrace cover-
V ) occupying space and covering ground should be served as the main strategy in early stage of vegetation restoration, which would enable the community coverage to rehabilitate rapidly. in mid - stage, due to the change of light environment and the species substitution, component adjustment should be chose as the main strategy
5 ）植被恢復的策略是早期階段以搶占空間、覆蓋地面的對策為主，群落蓋度恢復很快;中期階段，林內光照環境改變，物種替代，恢復對策以物種組成成分的調整為主;後期則是生物量積累與組成結構調整並重。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。In this project, the maximum height of the dam is 81m, but the deep overburden in the riverbed has the depth of 147. 95m which is about two times of the maximum height of the dam body, so the seepage and liquefaction prevention of the dam foundation becomes the key and important problem in the design of the dam project. the static stress and deformation under three different projects - horizontal blanket project, clay core project and asphalt core project - for the dam is analyzed comprehensively. the damage that may be induced by variable factors on the dam body in time of engineering completion and water impounding operation period is seriously studied
其次，將這一模型用於分析下坂地水利樞紐工程，由於該工程河床覆蓋層深度最深達147 . 95m ，是壩體高度的近兩倍左右，壩基的滲流和液化成為壩體安全主要問題，本文對該壩的三種設計方案即水平鋪層防滲方案、粘土心墻防滲方案及瀝青心墻防滲方案的靜態應力位移及壩體在竣工期、蓄水期等各個階段可能產生的破壞進行了認真研究。The landscape at the center is pristine and scenic, with most of the land being covered by pebbles. a small stream, the nectar river, flows through the grounds along three terraced levels creating cascading waterfalls
西湖道場的景緻非常純樸優美，地面上大多覆蓋著鵝卵石，一條甘露河蜿蜒穿流於三層階梯平臺，因地形落差而形成一些小瀑布。We shall follow the overall targets of “ establishing a social good faith system geared to individual persons and enterprises and covering all aspects of social economic lives, and creating a social economic environment with honesty and trustworthiness ” set by the municipal party committee and the municipal people ' s government, take the launching of varied social good faith activities as the foundation, the establishment of social credit system as the core, and the cultivation of credit service trade as a key point, grasp such links as credit information recording, credit product use and punishment for breach of promise, intensify unified leadership, coordinate resources of all quarters, perfect legal environment and drive forward this municipality ' s building of social good faith system by stages and with key points
要按照市委、市政府確定的「建立面向個人和企業，覆蓋社會經濟生活各個方面的社會誠信體系，營造誠實守信的社會經濟環境」的總目標，以開展各類社會誠信活動為基礎，以建立社會信用制度為核心，以培育信用服務行業為重點，抓住信用信息記錄、信用產品使用和失信行為懲戒等環節，強化統一領導，協調各方資源，完善法制環境，分階段、有重點地推進本市社會誠信體系建設。Districts ) and ambulatory units have popularized 9 - year compulsory education. the population coverage rate of the 9 - year compulsory education has come to 52. 5 %. the enrollment rate of secondary school also increased from 70 % in the early 1990s to 82. 4 %, the outcome is inspiring. but at the same time we must notice that the large amount of dropout student in rural junior schools are now troubling the development of rural education ! since 1996, the situation of dropout of rural junior school student kept deteriorating, and the tendency of it will be worse. the dropout rate of some areas have come to more than 20 %
「從1980年到1996年，小學學齡兒童入學率從93上升到98 . 6 ，小學畢業生升學率從75 . 9升至92 . 6 ， 1996年，全國已有92以上的人口的地區普及了小學教育，在全國2400多上縣（市、區）中，已有1482個縣（市、區）和行政區劃單位普及了九年義務教育，九年義務教育的人口覆蓋率達到了52 . 5 ，初中階段入學率也從90年代初期不到70提高到82 . 4 。 」分享友人