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Results The results showed that the average concentration of the bacteria, fungi and total microbes in the outdoor environment were 5.04×10^4, 3.75×10^3 and 5.41×10^4 cfu/m^3 respectively and the fungi accounted for 6.92% of the total. The preliminary identification showed that the dominant bacteria mainly were Micrococcus, Bacillus, Pseudomonas and Staphylococcus and the average percentage were 37.3%, 21.0%, 10.3% and 9.5% respectively. Of the five fungi the dominant ones were Aspergillum, Penicillium, Mucor and Rhizopu. The average percentage were 42.0%, 36.0%, 4.4% and 4.2% respectively. Conclusion The outdoor air of Hefei has been polluted by airborne microbes.
结果 合肥城区空气细菌总数均值为5.04×10^4cfu/立方公尺,真菌总数均值为3.75×10^3cfu/立方公尺,合计为5.41×10^4 cfu/立方公尺,其中真菌占6.92%;对不同采样点的空气细菌和真菌进行了初步鉴定,优势细菌属为微球菌属、芽孢杆菌属、假单胞菌属和葡萄球菌属,分别占总细菌的37.3%,21.0%,10.3%,9.5%;真菌共检出5属,其中优势菌属为曲霉属、青霉属、毛霉属、根霉属,分别占总真菌的42.0%,36.0 %,4.4%,4.2%。
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Results show 1 the total water requirement of the crops in the Jinghe Watershed is 740543.20×10^4 m^3, accounting for 41.58% of the total water requirement of the region; 2 of the two major groups of crops, grain crops are higher than cash crops in water requirement quotas; and among specific crops, vegetables, melons, rice and cotton are higher and sunflower, potato and benne are lower than other crops; 3 water requirement per hectare varies from county to county with the highest being 5682m^3hm^(-2), in Jingyang County, and the lowest 4022 m^3hm^(-2) in Dingbian County, averaged to 4 583 m^3hm^(-2), but the water requirement quota of a crop does not vary with the county, so calculation of water requirement quota of a county is closely related to its cropping structure; and 4 because of serious waste of water in farming, the actual water consumption in agriculture in the region is much higher than the calculated crop water requirement.
结果表明,泾河流域农作物需水量总计740543.20万立方公尺,农作物需水占总需水量的比例较高,为41.58%。粮食作物需水定额较经济作物高;就具体作物而言,菜、瓜类、水稻、棉花等需水定额较高,向日葵、薯类、胡麻等较低。各县单位面积需水量差异较大,平均值为4583立方公尺hm^(-2);泾阳县最高,为5682立方公尺hm^(-2),定边县最低,为4022立方公尺hm^(-2)。由于事先设定大多数作物的需水定额不随县的改变而改变,因此需水量与作物结构密切相关。农业用水浪费严重,使泾河流域农作物实际用水量远高于需水量的理论计算值。
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The effects of different management patterns on root system structure and biomass of Bambusa oldhami was studied. The results are as follows: for the extensively managed Bambusa oldhami stand, the dry weight, length, surface area and volume of roots were 317.61 kghm^(-2), 45 304.91 mhm^(-2), 98.65 m^2hm^(-2), and 0.0181 m^3hm^(-2) respectively.
对不同经营方式的绿竹林根系结构和生物量分布开展了研究,结果表明:在粗放经营的绿竹林内,竹根干质量总量为317.61 kghm^(-2),竹根长度总量为45304.91 mhm^(-2),竹根表面积总量为98.65平方公尺hm^(-2),竹根体积总量为0.0181立方公尺hm^(-2);在集约经营的绿竹林内,竹根干质量总量为1333.12 kghm^(-2),竹根长度总量为143338.46 mhm^(-2),竹根表面积总量为3089.15平方公尺hm^(-2),竹根体积总量为0.5831立方公尺hm^(-2)。
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G.E.Hubb root is from 0.20mm to 0.50mm, and 95% roots, diameter is thinner than 0.40mm. The total surface areas of roots is 10139.68cm^2, and the surface areas of roots is about 2 to 3 times to soil surface areas in the surface layer. Enlacing sod concretion to soil profile of Eulaliopsis binata G.E. Hubb root and the gigantic adsorption to soil grains of root surface are the mechanism why Eulaliopsis binata G.E. Hubb can reduce null and water loss significantly. The monitoring result from 2003 to 2004 indicates that, when the gradient is 12 degrees, the runoff rate of planting Eulaliopsis binata Retz. G.E. Hubb completely after changing slope land to ladder (PECC, so as the follows is only 49.90m^3/hm^2?yr. and the soil loss rate is 155.78kg/hm^2?yr, however, the runoff rate of fanning and being not change slope land to ladder is 314.29m^3/hm^2?yr that is 6.30 times to PECC ,and the soil loss rate is 3322.50 that is 21.33 times to PECC; When the gradient is 24 degrees, the runoff rate of planting eulaliopsis binata G.E, Hubb in the ridge and border slope land after changing slope land to ladder is 248.04m^3/hm^3?yr and the soil loss rate is 612.00kg/hm^3?yr. the runoff rate of PECC is only 42.44m^3/hm^2?yr and the soil loss rate is 153.75kg/hm^2?yr, however, the runoff rate of ENC reaches to 785.73m^3/hm62?yr that is 3.17 times to PERBC and 18.52 times to PECC, and the soil lose rate reaches to 37503m^3/hm^2 yr that is 61.33 times to PERBC and 244.12 times to PECC.
蓑草根系平均直径0.20~0.50mm, 95%的根系平均直径小于0.40mm,根系总表面积10139.68cm^2,在土壤表层根系表面积高达土体表面积的2~3倍,根系表面对土壤颗粒的巨大吸附作用是蓑草显著提高土壤抗侵蚀能力的另一个重要原因。2003~2004年的监测结果表明,在12度坡度情况下,坡改梯后净作蓑草年径流量仅49.90立方公尺/hm^2,年土壤流失量为155.78kg/hm^2,而未坡改梯且农作情况下,年径流量314.29立方公尺/hm^2为前者的6.30倍,年土壤流失量3322.50Kg/hm^2为前者的21.33倍;在24度坡度情况下,坡改梯后土埂及边坡种植蓑草、坡面农作年径流量248.04立方公尺/hm^2,年土壤流失量612.00kg/hm^2,坡改梯后净作蓑草径流量42.44立方公尺/hm^2,土坡流失量l53.75kg/hm^2,而未坡改梯且农作情况下年径流量高达785.73立方公尺/hm^2,分别为处理1的3.17倍,处理2的18.52倍,年土壤流失量高达37503kg/hm^2,分别为处理1的61.33倍,处理2的244.12倍。
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Firstly, virtual water contents were calculated for primary farm products and for virtual water consumption of residents in Jiangxi Province in 2000. The virtual water contents of crops was 284.81×108 m^3, and the virtual water consumption of rural residents 670.17 m^3. Then, based on the predecessors' study results, the difference of virtual water con- sumption of residents between Jiangxi Province and Shanxi Province was analyzed.
首先计算2000年江西省主要农产品虚拟水含量和城乡居民生活消费虚拟水含量,得出粮食作物的虚拟水含量为284.81×108立方公尺;城镇居民人均消费主要产品的虚拟水量为768.27立方公尺;农村居民人均消费主要产品的虚拟水含量为670.17立方公尺。
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And the water demands for ecological environment in Chaoyang River, Wuni River and Ajiutian River on Supa River basin are 1.54×10^8m^3, 3.31×10^8m^3, 3.56×10^8m^3 separately, and the water demands for sediment transport are all over 99%,which are respectively 48.9%, 44.9% and 52.3% of the runoff.
苏帕河流域朝阳、乌泥河、阿鸠田河的河流生态环境需水量分别为1.54×10^8立方公尺、3.31×10^8立方公尺、3.56×10^8立方公尺,分别占来水量的48.9%、44.9%和52.3%,其中输沙需水量均占99%以上。
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The experiments were carried out to calibrate FDR in the lab and field, and calibration equations were verified by oven-dried method for soil samples obtained by augers. The result showed that good calibrating equations with average RMSE 0.023 m^3/m^3 were fitted in the lab, but they had poor RMSE 0.066 m^3/m^3 when used in the field. Other calibrating equations with average RMSE 0.026 m^3/m^3 were also fitted by indirect field calibration method, and they had good RMSE 0.026 m^3/m^3 when used in the field.
结果表明,室内试验获得了较好的模型参数,均方根误差平均达到了0.023 立方公尺/立方公尺,但是应用到田间条件下误差很大,均方根误差平均为0.066立方公尺/立方公尺;田间条件下也间接获得了较好的模型参数,均方根误差的平均值为0.026立方公尺/立方公尺,应用于田间时测定含水量的精确度较高,均方根误差的平均值为0.026立方公尺/立方公尺。
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The different points of views, transverse section, plane and volume changes are considered. The results show that the evolution of the Xinqiao Channel has experienced three stages: in 1861~1926 ,the Xinqiao Channel area had been eroded at first and then silted; the Xinqiao Channel is formed during 1926~1958 with the channel experiencing persistence erosion; from 1958 to 2002, the total volume of the Xinqiao Channel keeps stable with the volume of 5.02×108m^3. The pattern of 10m contour has shaped to a certainty in 1926 and 5m contour of the upper and lower parts of Biandansha has been joined. The change of sections of the Xinqiao Channel reflects its thalweg movement to the North Bank 1.1~2.8 km, its shape changes from "U" shape to "V" shape and its depth has been deepened.
计算结果显示在所研究的区域内自1861年以来新桥水道冲淤过程明显被分为三个阶段:1861~1926年的66a间新桥水道区域经过一段时间的冲刷后又重新产生淤积,总容积变化不大;1926~1958年的33a间新桥水道在不断的冲刷中总容积由2.603亿立方公尺增长到5.076亿立方公尺;1958年至今的45a时间里水道容积基本保持在平均5.02亿立方公尺。1926年新桥水道10m等深线已经形成一定的格局,1947年5m等深线向上延伸,扁担沙已经不再与崇明岛相连;1958年上下扁担沙的5m等深线基本连成一体,可以认为此时新桥水道已经形成。
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Conventional tillage with bare ground, conventional tillage with straw incorporated and no-tillage with straw mulch were studied in the Hexi corridor of Gansu provience. The result showed: on summer fallow NTS stored soil water more than CTB and CTS by 30.62mm and 23.91mm, respectively; the winter storage irrigation quotas should be reduced to 900~1350 m^3/hm^2 on winter fallow; evaporation controlling rate arrived 38.1% and 7.3% at winter storage irrigation quotas 975m^3/hm^2 and 2100m^3/hm^2, respectively; NTS did not reduce ET during the spring wheat growth stage; yields different between treatments was not significant.
对甘肃河西内陆河灌区采用常规耕作、秸秆还田和覆盖免耕技术的农田水分效应进行研究,试验结果表明:在夏季休闲期,覆盖免耕比常规耕作和秸秆还田多贮水30.62mm和23.91mm;冬季休闲期可将大定额的储水灌溉减少到975~1350立方公尺/hm^2;覆盖免耕抑制蒸发率在储水定额为975立方公尺/hm^2时达到最大值38.1%,而在2100立方公尺/hm^2时最小为7.3%;覆盖免耕在作物生育期并没有减少土坡耗水量;各处理产量之间没有显著差异。
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Moreover, with the assistance of grey series forecasting model and the rule of the annual precipitation, the annual average precipitation, groundwater flow field, groundwater level and spring flow in the future under current exploitation circumstances were forecasted. If 2010 is a high flow year (guarantee ratio 20%), or median flow year (guarantee ratio 50%), or even low flow year (guarantee ratio 75%), the underground water level of Heilongdong spring in flood season will exceed 130 m, or reach 130 m, or even below 130 m, and the spring flow in flood season will exceed 10 m^3/s, 7 m^3/s, 5 m^3/s respectively.
以灰色序列预测模型为辅助手段,结合历年的降水规律,对未来现状开采条件下的年均降水量、地下水流场、水位及泉流量进行了不同保证率条件下的预测,若2010年为丰水年(保证率20%)、平水年(保证率50%)、枯水年(保证率75%,黑龙洞泉汛期地下水位标高分别为超过130m、达到130m、低于130m,汛期泉流量分别为超过10立方公尺/s、7立方公尺/s、5立方公尺/s。
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CFT: Cubic foot:立方呎
26. CBM: Cubic Meter 立方公尺 | 27. CFT: Cubic foot 立方呎 | 28. G.W. : Gross Weight 總重
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cu.m cubic metre:立方公尺
cu.ft. ubic feet 立方尺 | cu.m cubic metre 立方公尺 | cur. currency 币制
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cubic meter:立方 公尺
cubic inch 立方寸 | cubic meter 立方 公尺 | cubic yard 立方码
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Decastere:十立方公尺
decarburizer /脱碳剂/ | decastere /十立方公尺/ | decastyle /十柱式门廊/
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decistere:一立方公尺的十分之一
decisiveness /决定/决然/ | decistere /一立方公尺的十分之一/ | decit /十进单位/信息量的十进单位/
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kilostere:千立方米,千立方公尺
kiloroentgen 千伦琴 | kilostere 千立方米,千立方公尺 | kiloton 千吨
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km?? square kilometre:千平方米;千平方公尺
km. kilometre 千米;千公尺 | km?? square kilometre 千平方米;千平方公尺 | km?? cubic kilometre 千六方米;千立方公尺
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stere:立方公尺
stercoroma 积粪 | stere 立方公尺 | sterecscope 体视镜
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Yale:耶尔
在耶尔(Yale),河流偏离沿海山脉,河谷加宽. 从霍普(Hope)起进入三角洲,一般流量为8,490立方公尺/秒(300,000立方呎/秒),3月份枯水期只有700立方公尺(25,000立方呎/秒). 三角洲长160公里(100哩). 河口处至少有3条主要入海河道.
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coulomb per meter cubed:每立方公尺库伦
"每平方公分库伦","coulomb per centimeter squared" | "每立方公尺库伦","coulomb per meter cubed" | "欧洲议会","Council of Europe,COE"