風蝕強度 的英文怎麼說
中文拼音 [fēngshíqiángdù]
風蝕強度
英文
wind erosion intensity-
The main purpose of this discussion is to det ermine the appropriate roadbed earthfill height according to the degree of sandburry, windblown sand drift test, wind tunnel test, windbed stability, road economy and traffic accident analysis. the appropriate roadbed earthfill height is one of vital factors in preventing highways from the harm of sand
本課題研究的主要目的是沙漠公路在地理地貌、植被地質、沙源、風速強度等因素的影響下對公路形成的沙埋和風蝕危害,結合公路沙埋、風沙流實驗、風洞實驗、路基穩定性、道路經濟性、交通事故分析,確定路基的合理填土高度。According to the idiographic complexion of our country, the article elucidated the connotation of conservation tillage : it ' s a technology of tillage with minimum tillage or no - tillage so as to reduce the soil ' s disturbing, using stalk cover the field so as to decrease laboring and tillage ' s cost, preventing wind & water erosion, and improving the fertility of soil and the ability of fight a drought
摘要根據保護性耕作在我國的實施情況並結合國外已有研究結果,我們認為保護性耕作的內涵為:保護性耕作措施就是對農田實行少耕或免耕,盡可能減少對土壤的擾動,並以秸稈覆蓋地表,達到減少勞動強度和生產投入,防止農田風蝕和水蝕並提高土壤肥力和抗旱能力的一種農田耕作技術。The gullies are formed by the processes of infiltration - interflow - collapses. ( 2 ) in the slope with sand - loess, the major factors of water erosion are the rainfall intensity and rainfall amount of annual first rainfall. ( 3 ) in the region, the evolution processes of slope gully system results from alternative actions of sand deposition and water erosion
( 1 )有片沙覆蓋的斜坡小區,徑流量少,但徑流含沙率大,坡溝的形成過程是:垂直滲流坡地潛流崩塌; ( 2 )在沙黃土斜坡小區,每年春末夏初降雨的強度及降雨量是決定坡面產沙量的關鍵因素; ( 3 )該區坡溝系統的形成發育是風沙沉積、風蝕與水蝕交替作用的結果。These produels are produced by the techniques same with chemical bonded non - sintered bricks with semi - silica raw materials, they have high strength, good heat insulating and alkali resistant properties, they are mainly applied to the zones of large - sized cement rotary kilns which are croded badly by alkali, for example, the input zone, preheater, three - windtunnel, and decomposing zone
本產品採用半硅質原料,以化學結合不燒工藝生產而成,它具有強度高、隔熱效果好、抗堿侵蝕能力強的特性,主要用於大型水泥回轉窯筒入料區段、預熱器、三次風管和分解帶等堿侵蝕嚴重的部位。The sediments in the core are weakly weathered, lightly abraded and bad sorted, they have the same feature as river sediment, which is derived from near source and did not experience seriously transformation by ocean. due to the rate of insufficient sediment supply the sedimentation rate is low
碎屑礦物風化程度低,磨蝕不顯著,分選較差,河流砂特徵明顯,沉積物來自於近源,由河流輸送入海,海洋改造不十分強烈,由於物源供應不足,沉積速率較低。分享友人