DictionaryForumContacts

   Chinese
Terms for subject Environment containing | all forms
ChineseEnglish
土壤盐soil salination The accumulation of soluble mineral salts near the surface of soil, usually caused by the capillary flow of water from saline ground water. Where the rate of surface evaporation is high, irrigation can exacerbate the problem by moistening the soil and causing water to be drawn from deeper levels as water evaporates from the surface. The evaporation of pure water leaves the salts behind, allowing them to accumulate, and they can reach concentrations that are toxic to plants, thus sterilizing the land (土壤表面的可溶天然盐的积累,通常是由地下水盐碱水的毛细流引起的。表面蒸发速度快,由于土壤滋润可以得出的水从表面更深层次蒸发,灌溉会加剧这一问题。 纯净水蒸发后留下的盐的积累达到一定浓度就对植物具有毒性,因此破坏土壤。)
性土地alkali land Any geomorphic area, often a level lake-like plain, with soil containing a high percentage of mineral salts, located especially in arid regions (土壤含有高百分比的矿物质盐的任何地貌区域,通常是平如湖泊般的平原,其,常位于干旱地区。)
性土壤alkali soil Soil that contains sufficient exchangeable sodium to interfere with water penetration and crop growth, either with or without appreciable quantities of soluble salts (含有足量可交换的钠离子以影响水分渗透和农作物生长的土壤,可能含有一定浓度的可溶性盐类。)
性度basicity The state of a solution of containing an excess of hydroxyl ions (溶液中含有过量氢氧根离子的状态。)
性电池alkaline battery A primary cell that uses an alkaline electrolyte, usually potassium hydroxide, and delivers about 1.5 volts at much higher current rates than the common carbon-zinc cell. Also known as alkaline-manganese cell (通常使用氢氧化钾作为碱性电解液的原电池,能够以远高于普通碳锌电池电流的速率输出1.5伏特电压。通常也被称作碱锰电池。)
lye The alkaline solution that is obtained from the leaching of wood ashes (由木灰浸泡得到的碱性溶液。)