交换性

基本解释 (translations)

commutativity  ·  permutability

与交换性相关的网络例句 [注：此内容来源于网络，仅供参考]

We obtain the necessary and sufficient conditions for the commutativity of k~-order slant Toeplitz operators and the compactness of products of such operators, in particular, the commutativity and the essential commutativity of such operators are in accord.

第二章研究了L~2上的k阶斜Toeplitz算子的性质、得到了两个k阶斜Toeplitz算子可交换的充要条件及其乘积和换位子是紧算子的充要条件，特别地，给出了两个k阶斜Toeplitz算子的交换性与本性交换性是一致的。

Therewas a significant characteristic of the vertical distribution of soil enzyme activity,the relationship analysis indicated that there was a significant positive relationshipbetween the catalase activity and OM,and total N,and effective P、K,and ex-changible Mg,there was a negative relationship between the catalase activity andBase Situatiou percentage,and Total Contents of Base;the activity of the polyphe-nol oxidase was positively related with OM,and negatively related with total N andexchangible Ca clearly;The urease activity decreased with CPR increasing,and thechange of the former two kinds of soil enzyme actirity was not significantly withCPR increasing,It is possible to be related with maned disturbance frequently.

随着代次增加，有机质和交换性Ca下降明显；土壤的CEC和交换性酸分别下降了8.8—16.1%和6.8—18.5%，因此，其养分总量亦逐代降低，其中有机质下降幅度最大；土壤酶的活性具有明显的垂直分布特征，相关分析表明，过氧化氢酶活性与土壤OM、全N、有效P、K和交换性Mg有极显著的正相关，而与盐基总量、盐基饱和度呈明显的负相关。多酚氧化酶活性与OM呈显著负相关，与全N、交换性Ca有显著相关。脲酶活性则有随连栽代次增加而有下降趋势，前两种酶在代次之间变化不明显，可能与频繁的土壤干扰有关。

Soil pH was in significant negative correlation with exchangeable acid and nonexchangeable acid, but in significant positive correlation with base saturation, which is mainly restrained by dominant exchangeable Ca(superscript 2+).

3土壤pH与交换性酸、非交换性酸含量呈极显著负相关，而与盐基饱和度呈极显著正相关，且主要受占优势的交换性Ca制约。

Items of pH, soil solution K, exchangeable k, nonexchangeable K and potassium fixation index were all determined after incubation. The results indicated similar extent and trends of transformation among three K forms, that is, decreasing content of soil solution K and exchangeable K but increasing nonexchangeable K level were observed in both CaCO3 and SrCO3 treatments of two soils. As to CaCl2.2H2O addition, pH increase was not found and the change of three K forms was not significant when application rate raised.

结果显示CaCO3的添加，除能提升土壤pH值外，亦能使土壤中三种型态钾(溶液性钾，交换性钾，非交换性钾)有显著的改变，且改变程度及趋势均甚为相似，而CaCl2.2H2O的添加不会造成土壤pH的改变，且三种型态钾并不随CaCl2.2H2O用量的增加而有显著改变的现象。

The increased amount of non--exchangeable NH4^＋-N during the incubation indicated as the following tendency, namely, Eum-Orthic Anthrosols 〉 Los - Orthic Entisols 〉 Hap-Ustic Isohumisols 〉 Ust-Sandiic Entisols. Organic material influenced significantly the increased amount of non-exchangeable NH4^＋-N （P was 0.0002, 0.0004 and 0.0003 when incubated at 20 d, 50 d and 60 d, respectively）. NH4^＋-N increased remarkably when Stlpa bungeana and Medicago sativa were added compared with no addition. The contents of non-exchangeable NH4^＋-N increased significantly when added （NH4）2SO4 compared without addition at 20 d, 40 d and 60d of incubation and P was 0.0037, 0.0033 and 0.0027, respectively. It was the result that the NH4^＋-N from （NH4）2 SO4 was fixed within the soil. The increased amount of non-exchangeable NH4^＋-N increased significantly for different soils, on which different vegetation types grew before the collection of soil samples, when incubated at 20 d （P=0.0434）, but not significantly at 40 d and 60d （P=0.7378 and 0.5375）. The increased amount of non-exchangeable NH4^＋-N in the soil, on which crop straw and nitrogen fertilizer had been incorporated for a long-term period, was larger than that of no addition, but it was not significantly different among these two fertilization models. Soil clay, total N and organic matter were positively correlated remarkably with the contents of non-exchangeable NH4^＋-N, the increased amount of non-exchangeable NH4^＋-N had no correlation with soil clay, whereas it had significantly positive correlation with total N and organic matter.

培养期间非交换性NH4^＋-N的增加量均表现为以土垫旱耕人为土最大，其次是黄土正常新成土，简育干润均腐土和干湿砂质新成土较小；添加有机物料极显著影响培养期间的非交换性NH4^＋-N增加量（培养20d、40d和60d时P分别为0.0002，0.004和0.0003），表现为紫花苜蓿和长芒草土壤非交换性NH4^＋-N的增加量均极显著高于不添加有机物料的对照土壤；在培养20d、40d和60d时，加（NH4）2SO4土样非交换性NH4^＋-N的增加量显著大于不加（NH4）2SO4土样（户分别为0.0037，0.0033和0.0027），这是土壤对（NH4）2SO4中NH4^＋-N固定的必然结果；不同植被类型土壤培养20d时的非交换性NH4^＋-N增加量差异显著（P=0.0434），培养40d和60d时差异不显著（p分别为0.7378和0.5375）；长期秸秆和氮肥配施土壤非交换性NH4^＋-N增加量大于不施肥对照土壤，但差异不显著土壤黏粒、全氮和有机质与培养0d、20d、40d和60d时土壤的非交换性NH4^＋-N含量均呈极显著正相关；而非交换性NH4^＋-N的增加量与粘粒无相关性，但与全氛和有机质呈显著正相关。

Soil potassium forms were gradated using the method of Jin Jiyun(1992),results showed: water soluble K、exchangeable K、non-exchangeable K、total K increased in the treatments of organic manure,and there were close relations between different potassium forms ,exchangeable K、 Non-exchangeable K and mineral K might transform each another.

按金继运(1992)确定的方法对土壤钾素形态进行分级，结果表明：施有机肥能增加土壤水溶性钾、交换性钾、非交换性钾、矿物钾及全钾含量。

Soil samples were collected from protected fields in Yuhong District of Shenyang, Liaoning Province, China, for determination of exchangeable acid, exchangeable base and pH, and further analysis of acidification characteristics of the soils and relationships of soil pH with the other two.

在辽宁省沈阳市于洪地区采集保护地及其相邻露地旱田土壤样品，测定土壤交换性酸、交换性盐基离子组成和土壤pH，研究保护地土壤酸化特征以及土壤pH与潜性酸、交换性盐基的关系。

And, the proportion of H(superscript +) in exchangeable acid showed a reverse trend. 2 Exchangeable bases, especially exchangeable Mg(superscript 2+), K(superscript +) and Na(superscript +), in various layers of the soils in the protected fields were much higher than those in the control, not only in content, but also in saturation, whereas soil exchangeable Ca(superscript 2+) did not vary much, but the base saturation and exchangeable Ca(superscript 2+) saturation decreased significantly.

2保护地各土层土壤交换性盐基总量较露地相应层次土壤均有所增加，其中交换性Mg(上标 2+)、K、Na含量均高于露地，而交换性Ca(上标 2+)含量变化不明显；保护地各土层土壤交换性Mg(上标 2+)、K、Na饱和度较露地相应层次土壤均有所增加，但盐基饱和度、交换性Ca(上标 2+)饱和度下降明显。

Story background : Prosecutors in east China have charged a group of 22 alleged swingers with criminal licentiousness, state media said Wednesday, stoking calls for greater sexual freedom in the Asian country.

背景：有媒体称，中国东部的检察官控诉22名交换性伴侣者以&聚众淫乱罪&，亚洲国家性自由的呼吁。Winger 时髦的人，性开放者，交换性伴侣者

The results are:(1) The higher of altitude,the less of soil acidity in soil C horizon at Dinghushan;(2) There are more NH4-N,total K,available K, exchangeable K,exchangeable Na,exchangeable Mg and the content of exchangeable cations in lateritic red soil at low altitude than those in yellow soil at high altitude;(3) With increasing altitude,the contents of sio2 and Mn decrease,and the concentrations of this two minerals in lateritic red soil are higher than those in yellow soil.

结果为：（1）鼎湖山土壤剖面C层随着海拔梯度的上升，土壤酸度降低。（2）鼎湖山位于海拔低的赤红壤的NH4-N，全钾，速效钾，交换性Na，交换性钾，交换性Mg和阳离子含量比位于海拔高的黄壤的对应养分含量要高。

与交换性相关的网络解释 [注：此内容来源于网络，仅供参考]

exchange acidity：交换性酸度

exchange 交易所,互换,流转,交换=>交換機,交換局 | exchange acidity 交换性酸度 | exchange adsorption 交换吸附,交换吸附

anticommutativity：反交换性

anticommutative 反交换的 | anticommutativity 反交换性 | anticommutator 反换位子

commutativity：交换性

Jennifer Kaminski团队以大学部学生为实验对象,在不同的条件下学习简单的交换性(commutativity)与结合性(associativity)数学观念,例如3+2 或2+3都等於5.

commutativity：[数]交换性

beam axis 射束轴 | commutativity [数]交换性 | monomeric 单节显性的

local commutativity：局部交换性

局部异常 local anomaly | 局部交换性 local commutativity | 局部密度泛函法 local density functional method

exchangeability：互换性 交换性 可交换性 可交易性

exchangework变工 | exchangeability互换性 交换性 可交换性 可交易性 | exchangeable可交换 可交换的

exchangeable cation：交换性阳离子;交换性正离子

exchange capacity交换量 | exchangeable cation交换性阳离子;交换性正离子 | exfoliation剥离(作用)

exchangeable base：交换性盐基

exchange resin 交换树脂 | exchangeable base 交换性盐基 | exchangeable sodium 交换性钠

exchangeable base：交换性碱

exchange zone 交换带 | exchangeable base 交换性碱 | exchangeable ion 交换性离子

exchangeable base：交换性碱

exchange zone 交换带<域> | exchangeable base 交换性碱 | exchangeable ion 交换性离子