dead soil 中文意思是什麼
dead soil
解釋
不毛之地。-
Mars is a dead planet ; a dead battery ; dead soil ; dead coals ; the fire is dead
火星是一個死星球；用完了的電池；貧瘠的土壤；熄滅了的煤；火已經熄滅了。 -
The red - orange cinnabar mushroom, inedible by humans, plays an important ecological role in degrading dead organic matter in soil and recycling the nutrients
橙紅垂幕菌雖然人類不可食用，但勝在能夠分解泥土中的有機枯枝落葉，促進養分循環，具有重要的生態功能。 -
The trade - off problems arising from ecosystem modification is ubiquitous in sabah - absolutely polluted rivers, beautiful oxbow lakes eaten away by invasive alien freshwater hyacinths or salvinia molesta from south america and their resultant death through triplication, sedimentary blooms encroaching mangroves, coastal fishing grounds, unprecedented long and deeper flooding in the major river basins. take the ecosystem services away, mankind is as well dead. for instance, nutrient formation needed by man, water cycling, soil formation and soil retention, pollination of plants, resistance to invasive species, regulating climate and pests as well as pollution control by ecosystems are some of the critical ecosystem services
其實，沙巴最迷人的度假特色，還是周遭豐富繽紛的海底生態資源，馬來西亞7座海洋公園，就有4個位在沙巴沿海區域，包括亞庇西北165海裡外的拉央拉央島layang - layang沙巴東南處的馬寶島mabul和卡巴賴島kapalai沙巴和汶萊灣岸外以北的納閩labuan ，以及亞庇海外由5座小島構成的東姑阿都拉曼國家公園tunku abdul rahman park islands 。 -
Effect of soil conservation forest depends on land surface cover of dead leave and soil condition
水土保持林的效益主要取決于林地枯落物和林地土壤狀況。 -
Dead leaves when they lose themselves in soil take part in the life of the forest
?落葉在泥土裡迷失自己的時候，就融入到森林里的生命力了。 -
This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization
半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。 -
There are bacteria that help plants grow, others that get rid of dead animals and plants by making them decay, and some that live in soil and make it better for growing crops
有些細菌能幫助植物生長九酷音樂網另一些細菌則通過腐蝕來消除死去的動物和植物，還有一些細菌則生活在土壤里，使土壤變得對種植莊稼更有好處。 -
In original and jamming slightly vegetation, because dead roots, branch and leaves back to soil, soil organic matter higher, soil available phosphorus higher, too ; chemical and physical characters of soil were stabilization. the reason were original vegetation have more species and structure of community was stable. the degradation of fertility and structure of soil in secondary vegetation was influenced by change with structure and form of community
在人為干擾小的原生性森林，植物種類豐富，群落結構穩定，植物死根系和枯枝落葉全部回歸土壤，土壤有機質含量高，養分呈有機態為多，故有效磷較高，土壤理化性質較穩定；次生植被群落土壤結構和肥力的退化是由於群落組成和結構的改變導致枯枝落葉成分和土壤發規白山地還小問沙消民俗一非定俗地征王卿喬忡旺w比收財育環境差異而引起，次生植被土壤的退化狀態隨植被退化程度不同而有差異。 -
They endure for several weeks in moist soil and dead animal tissues.
它們在潮濕的土壤和死亡的動物組織中能生存數星期。
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