poor drainage 中文意思是什麼
poor drainage
解釋
不良排水-
Poor drainage causes deficient soil aeration and death of the roots.
排水不良能減低土壤的透氣性，使根死亡。 -
Some soils, such as sandy soils, have a loose crumb structure with good drainage, whereas in clay soils the particles are small and stick together to give a dense crumb structure and poor drainage
一些土壤例如砂土具有鬆散的結構，因而有良好的排水性，而在粘土中，由於土壤顆粒小而互相粘合導致粘土結構緊密排水性較差。 -
We have extended our research on rocky desertification, provided solid theoretical and technical basis for the control of rocky descrtification and established successful rehabilitation model with chinese characteristics such as integrated control of small drainage area, returning cultivated land to forestry and grass, production of both animal and grass, changing slope to terrance in order to prevent water loss and soil erosion, aiding the poor byway of environmental immigration and development and improving representative fragility ecology, etc
貴州對喀斯特石漠化生態環境進行了長期、持久的研究，為石漠化治理提供了堅實的理論基礎和有力的技術支撐，形成了具有中國特色的成功治理模式：包括小流域綜合治理模式，生態農業模式，退耕還林還草、林草結合的草、畜（禽）生產模式，草地畜教業模式，坡耕地防治水土流失的坡改梯模式，環境移民與開發式扶貧模式，典型脆弱生態環境綜合治理模式等。 -
Poor maintenance of buildings, in particular the older ones, have resulted in a myriad of building problems such as structural deterioration, concrete spalling, defective drainage and defects in fire safety provisions posing various hazards. the safety of both the occupants and the public are at stake
樓宇特別是舊樓維修欠佳會引致種種問題，例如結構退化石屎剝落排水系統出現問題及消防安全設施欠妥等，令居民及公眾的安全均備受威脅。 -
In this part, it demonstrates with sufficient argumenls in the aspects of material choice for the surface course, base course style, road drainage, etc. in theory it solves the troubles in the weak surface course, the weak base, the poor road drainage, etc. the thesis also debates on the exploration of constructive technique on the method of design of the cement concrete pavement based on the poor concrete base
本文首先分析了宣大高速公路交通組成，介紹了我國幾個水泥混凝土路面建設大省的經驗，總結了國內外水泥混凝土路面的研究成果，從面層選材、基層類型與排水等方面都作了詳細論證，從理論上解決了面板薄、基礎弱、排水差等問題。本文對貧混凝土基層水泥混凝土路面的設計方法也進行了有益的探索。 -
Application and study on gas drainage technique for highly - located bore - holes in poor penetration seam
高位鉆孔抽放瓦斯技術在弱透氣性煤層中的研究及應用 -
At the same time, poor irrigation and drainage practices have led to salt buildup in roughly one - eighth of all irrigated land
與此同時，不良灌溉和排水已造成大約八分之一的灌溉土地上堆積了鹽分。 -
Monsoon rains and poor drainage enable the disease to thrive in many indian cities
季風降雨以及排水不暢，使得這種疾病仍在印度的許多城市中肆虐。 -
They sustained this dense settlement through raised field agriculture, a technique that improved drainage and recycled nutrients in the poor tropical soil
他們通過高地農業維持著人口密集的居住地的生存。高地農業技術可以改善貧瘠的熱帶土壤的排水和養分的循環利用。 -
The hollow concrete has been filled in the interface between abutment and approach embankment. it is successful to solve the problem of poor compaction near the abutment because of restricted access. it is also very useful to drainage of the embankment
本文還對大孔隙混凝土這一材料進行試驗分析，提出了臺背一定范圍內採用大孔隙混凝土填築，可以解決臺背一定范圍內的土體不易壓實和臺背排水等問題。 -
A flat roof has poor drainage
平的屋頂排水差
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