盐浓度

The principle could be expressed by dissolving upward gradationally to ensure the continuity of the border of solution mined cavern considering of its security and stability.

水溶建腔优化设计原则，就是考虑到溶腔的安全性、稳定性，根据建腔周期的要求、采盐浓度的要求，自底向上分阶段溶蚀，保证溶腔形状的连续性，对于含夹层非均质盐岩地层，应根据夹层状况对水溶建腔的设计参数作相应的调整。

The results show that the tiller number, biomass accumulation, contents of soluble sugar and proline, and activity of SOD isozyme of E+ plants were significantly higher (P.05), but malondialdehyde content significantly lower (P.05), than those of F- plants. In conclusion, endophyte infection improved the salt tolerance of wild barley under outside pot conditions.

结果表明：在高盐浓度300 mmol L^(-1下内生真菌显著提高了宿主野大麦分蘖能力、生物量积累、可溶性糖含量、脯氨酸含量、SOD酶活性(P.05)，同时降低了丙二醛含量，说明内生真菌的侵入有利于提高宿主野大麦在室外盆栽条件下的耐盐性。

The results show that the tiller number, biomass accumulation, contents of soluble sugar and proline, and activity of SOD isozyme of E+ plants were significantly higher (P.05), but malondialdehyde content significantly lower (P.05), than those of E-plants. In conclusion, endophyte infection improved the salt tolerance of wild barley under outside pot conditions.

结果表明：在高盐浓度300 mmol L^(-1下内生真菌显著提高了宿主野大麦分蘖能力、生物量积累、可溶性糖含量、脯氨酸含量、SOD酶活性(P.05)，同时降低了丙二醛含量，说明内生真菌的侵入有利于提高宿主野大麦在室外盆栽条件下的耐盐性。

The scion and radicle had different response to the salts, and the salt concentrations had more influence on the radicle.

幼根和幼芽对不同种类盐胁迫表现出不同的反应，盐浓度对根的影响较大。

According to analysis of salt tolerance indexes, it was obtained that salt inhibited seed germination and seedling growth along with the increase of salt concentration, the relative germination rate, germination index and relative simple activity index, seedling root length and plant height reduced gradually, membrane permeability of leaves increased.

结果表明，盐胁迫对燕麦种子萌发和幼苗的生长有抑制效应，而且随着盐浓度的增加，相对发芽率、发芽指数、简易活力指数、幼苗根长和株高逐渐降低，叶片质膜透性逐渐增加。

The results showed that: Under salt stress, it was found the content of Na(superscript +), Cl(superscript -), SO(superscript 2- subscript 4) and Na(superscript +)/K(superscript +) ratio in almond rootstocks organs all went up with increased salt stress and longer treatment days, K(superscript +) content changed irregularly. But K(superscript +) content in every organ of A. commans persicoides rootstocks was higher than that of other two almond rootstocks; the ratio of Na(superscript +)/K(superscript +) in Amygdalus communis L. was higher than that of other two rootstocks.

研究结果表明，盐胁迫下，3种砧木根、茎、叶中Na，Cl，SO(上标 2-下标 4)含量及Na/K比均随盐浓度的增加和处理时间的延长而增加，K含量变化规律不稳定，但桃扁桃根、茎和叶片中K略高于其他两个品种；石头扁桃根、茎、叶片中Na/K比值高于其它两个品种，桃扁桃中Na/K比值最低。

The growth parameters of 20 accessions of Elymus spp. at early seedling stage were measured under various salt stress at 0, 0.4%, 0.6%, 0.8% and 1.0% NaCl in the soil, and the accessions were sorted out using the method of polar ordination.

设置对照(0)、0.4%、0.6%、0.8%和1.0%等5个土壤盐浓度水平，对披碱草属20份野生种质材料的苗期生长参数进行测定，在此基础上采用极差分类进行种质材料的耐盐性排序。

The interfacial tension between ABEPS solution and crude oil had been investigated. It was shown that ABEPS not only displayed outstanding salt resistance, but also good hard-water endurability, furthermore ultra low interfacial tension could be achieved without alkaline but proper amount NaCl in the water-crude oil system, which proved its excellent interfacial performance and better application prospects.

本论文还通过对ABEPS水溶液与原油之间的界面张力测定，发现ABEPS不仅具有出众的耐盐性能，而且具有良好的抗钙镁性能，合适的盐浓度下，表面活性剂水溶液与胜利原油之间可以在没有外加碱的情况下形成超低界面张力，说明这类表面活性剂具有良好的界面活性和潜在的应用前景。

By measuring the vapor-liquid equilibrium of ethanol- hexamethylene -NaI and verifying the data by means of ternary Gibbs-Duhem equation,the data of the vapor-liquid equilibrium of ethanol- hexamethylene -NaI were in agreement with both criterions.

假定NaI的平均活度系数可表示为盐浓度平方根(m1/2)的幂级数，采用全部合格的汽液平衡数据拟合出幂级数中的各项参数，从而获得在双液比固定条件下盐在非水混合体系中的活度系数。

Have been investigated by changing temperature of PVDF resolution, types of solvent, molecular weight of PVDF, weight of additive, time of solvent pre-evaporation and so on.

在完成膜蒸馏通量测试装置的基础之上，本课题对PVDF复合膜的脱盐性能进行了研究，考察了料液温度，料液盐浓度，料液流量，操作压力，操作时间，气隙距离，支撑体种类，料液中离子种类对蒸馏通量，除盐率及蒸发效率的影响规律。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。