查询词典 cation-active

Main contents of the course includes: related conceptions, matter of soil, soil texture, soil organic matter, soil humus, soil structure, soil moisture, soil air, soil acidity and soil alkalinity, soil colloid, cation exchange, soil former soil-forming process, soil classification, distributions and properties of soil great group in China (fores soil, steppe soil, main non-zonal soil, paddy soil, etc), soil erosion, soil contamination, soil utilization, conservation of soil resource, soil investigation, etc.

土壤地理学是地理科学专业的主要基础课程之一，是一门必修课程；要求掌握土壤地理学基本的理论、知识和方法；主要内容有：有关概念、土壤组成物质、土壤质地、土壤有机质、土壤腐殖质、土壤结构、土壤水分、土壤空气、土壤酸碱性、土壤胶体、土壤阳离子交换、土壤形成因素、土壤形成过程、土壤分类、中国主要土壤类型（森林土壤、草原土壤、主要的非地带性土壤、水稻土等）的分布及其性质、土壤侵蚀、土壤污染、土壤资源的利用与保护、土壤调查研究等。

Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~ series,have been wildly used due to their high proton conductivity and substantial durability.

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

With regard to anion exchange membranes,the traditional preparation method involves a much complicated process—chloromethylation,in which the commonly used chloromethyl methyl ether and bis-chloromethylether are now considered carcinogens.Therefore,it is necessary to develop new routes to prepare anion exchange membranes without such chloromethylation process.As for cation exchange membranes, mostly-perfluorinated sulfonic acid ionomers,such as Nafion~?

对于强碱性的阴离子交换膜的制备，由于传统路线中的卤甲基化步骤中不可避免的采用强致癌物质二氯甲醚，因此无论是从经济成本还是环境保护方面，开发不采用氯甲基化步骤的阴离子交换膜制备方法是目前的一个迫切要求。

It is more important that the proposed method offers a general approach, which can be applied to any other cations by simply replacing the lithium-selective ionophore with any other suitable cation-selective one.

更为重要的是，在这一体系中，若将其中的锂离子中性载体换成其它合适的离子载体，就可获得其它离子的荧光化学传感器。

Vanilloids bind to the transient receptor potentialion channel subtype 1, a nonselective cation ionophore importantin the integration of different noxious signals.

Vanilloid 结合到瞬时受体电位离子通道亚型1，后者是一种非选择性的阳离子载体，在整合不同伤害信号时起重要作用。

Vanilloids bind to the transient receptor potentialion channel subtype 1, a nonselective cation ionophore importantin the integration of different noxious signals.

Vanilloid 结合到暂态受体电位离子通道亚型1，后者是一种非选择性的阳离子载体，在整合不同伤害信号时起重要作用。

Using the carrier to carry digital information in modern communication is a wides cation, such as PSK and QAM technologies, both of them need the carrier with sin wave.

在现代通信中利用载波携带数字信息的传输应用广泛，如PSK、QAM等调制技术均要用到正弦形式的载波。

Trial 1. Effects of different dietary cation - anion balance on the digestion and degradation dynamics of fibreTwelve 2 years old Inner Mongolian fine wool wethers(Body weight, 29 ± 3.36kg) with permanent rumen and duodenum cannula , divided into 4 groups of 3 were used to study the effects of 4 levels DCAB on the digestion and rumen degradation of dietary fibre and on digestion of the dietary DM, ADF and NDF and passage at the different sites of the digestive tract of sheep.

试验一：不同日粮阴阳离子水平对纤维物质消化动态学及降解动力学的研究选用 2周岁（体重为 29 ±3.36kg）安装有永久性瘤胃瘘管和十二指肠近端瘘管的内蒙古半细毛羯羊12只，随机分成4组，每组3个重复，采用食糜标记技术和尼龙袋法研究了4种不同DCAB水平对玉米秸秆中干物质、中性洗涤纤维、酸性统涤纤维、纤维素及半纤维素在绵羊瘤胃中有效降解率以及对日粮中DM、NDF及ADF在消化道不同部位流通和消化规律及对瘤胃微生物蛋白质合成的影响。

Premier Zhou Enlai said to him, Your handshake came over the vastest ocean in the world - twenty-five years of no communi-cation.

周恩来总理对他说了这样一番话：你与我的握手越过了世界上最为辽阔的海洋，这个海洋就是互不交往的25年。

There was anearlier repli-cation band in the broad,late replication legion W chromosome's long arm,whilst Z chromosome lacked this earlier replication band.

在W染色体长臂近着丝粒处有一个较早的复制带，Z染色体则缺乏这个复制带。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？