The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno
研究結果表明: 1太白山南坡土壤的主要理化性質隨海拔
高度的上升呈有規律的變化:隨海拔
高度上升,機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒,海拔1600m以下出現粘化層;土壤有機質豐富,表層有機碳含量一般在20g kg以上,有機碳含量隨海拔
高度升
高而相應增加,海拔3500 3700m的灌叢草甸植被下有機碳含量最
高;土壤呈酸性或微酸性,並隨海拔上升, ph值略微降低,酸性增強,海拔2700m以上的土壤多呈鹽基不飽和狀態,表明土壤淋溶作用較強, ph值和鹽基飽和度呈極顯著正相關;土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定,土體中sio _ 2含量較
高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質
元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南
元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層
高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層
高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南
元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南
元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。
A high polymer is a very large aggregation of units.
一個
高聚物是許多單
元的非常大的組合。
Friendship with the son and daughter - in - law of an imprisoned supreme court justice afforded me a special pipeline into high - level ghanaian gossip about the alarming psychological condition of the head of state, said alternately to be suffering from delusions of grandeur fed by sycophants or to be reduced to quivering agoraphobia after the attempts on his life
因與一在獄的最
高法院法官的兒子兩夫婦有些交情,從而得知迦納
高層傳出的一些小道消息,說是國家
元首的心理狀況令人擔憂,有人說他現在總是把那些奉承他的人當成聯邦人員,也有人說他在遭人企圖謀殺之後就得了陌生環境恐怖癥,身子虛到發抖。
The experimental results showed that in the condition of this experiment four algaecides all had strong removing rate on algae, and their removing rate increased with dose increasing, and decreased with algae density increasing. according to the removing rate on algae and cost value or so, the sequence of four algaecides from good to bad were potassium permanganate, copper sulfate, hydrogen peroxide and sodium hypochlorite. in the condition of this experiment, the suitable dose of potassium permanganate was 0. 8mg / l, the algal removing rate was beyond 90 % and the cost of this algaecide was only 0. 0068 / m3. the efficiency of algae removal by four algaecides for huanghe river water was studied. the results showed that the majority of huanghe river water was bacillaroiphyta, and the dominant genera was melosira, which reached 78 % ~ 94 %
結果表明,在實驗條件下,四種殺藻劑均具有一定的殺藻效果,藻類去除率均隨藥劑投量的增加而提
高;原水藻類數量影響殺藻劑殺藻效果,四種殺藻劑的藻類去除率均隨原水藻類數量的增加而降低;通過殺藻效果、經濟性以及安全性等方面的綜合比較,對于以有毒藍藻為優勢藻屬的引灤水,四種殺藻劑的優劣程度從優到劣排序為:
高錳酸鉀硫酸銅過氧化氫次氯酸鈉;在實驗條件下,
高錳酸鉀適宜投加量為0 . 8mg l ,藻類去除率
高於90 ,所需的藥劑費用僅為0 . 0068
元m ~ 3 。
After the study on the general industrial organization model, the paper defines radical innovation based high - tech industry and its characteristics, and then it points out that there are three different actual models, the first one being ambidextrous organization or pan - ambidextrous organization model featuring the cooperation between small enterprises and conglomerates, the second forward industrial convergence organization model and the third horizontal industrial convergence organization model
通過對一般產業組織模式的研究,對突破型
高新技術產業的概念進行界定,指出其特徵,並提出突破型
高新技術產業組織的一般模式和三種具體模式: ( 1 )小企業與大集團的二
元或泛二
元組織模式, ( 2 )前向產業會聚的組織模式, ( 3 )橫向產業會聚的組織模式。
The price tag for an amg model is $ 25, 000 - $ 35, 000 higher than for the equivalent mass - production version
一輛amg款轎車的售價,比對等的量產版
高2 . 5萬美
元至3 . 5萬美
元。
This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不
高、
元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷,利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法,提出了在液壓系統中加一個定差減壓閥的新思路,較好地解決了液壓伺服系統存在的上述問題。
Thus we think mete - cognition is the most crucial to further improve their reading ability
因此,提
高元認知水平是提
高英語閱讀能力的突破口和關鍵。
Copper wire ball bonding is a new technology which is expected to replace the traditional gold wire ball bonding and is of great significance in reducing the cost and improving the reliability of microelectronic components
銅絲球鍵合是一種有望取代現行金絲球鍵合工藝的新技術,這一技術對于降低微電子
元器件的成本、提
高元器件的可靠性具有重要意義。
I try to make students accomplish their learning to the best state by motivating their learning interesting to keep satisfactory mentality ; helping them establish aim and make plan to prepare for their next learning ; directing them select scientific study method and learn in a tactful way ; imparting them certain metacognitive knowle
培養學生的
元認知能力,不僅能提
高學生的學習成績,還能養成良好的學習習慣,而且學生的學習意識、學習能力和學習的其他品質都得到了提
高,
元認知能力是實現學生「學會學習」的根本保證。
On the equal - height elements of the fuzzy subgroups
子群的等
高元
I took the liberty of arranging a funeral at koenji temple
我自做主張,安排了她在
高元寺的葬禮
Sensors with wider distance between electrode tracks exhibit improved stability in aging process
而增加電極中心線間距離可提
高元件的耐老化性能。
The improvement in stability of sensors by aging can be explained by irreversible tunnel effect
老化提
高元件穩定性是基於通道效應的不可逆性。
The avoiding technology mainly focuses on improving the reliability of component and parts of an apparatus, which cannot evade unplaned nework failures
以提
高元器件可靠性為主的避錯技術並不能消除不可預測故障對計算機網路系統可靠性影響。
The upper edge of the image is aligned with the upper edge of the highest element on the same line
圖像的上邊緣與同一行上最高元素的上邊緣對。