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- acid geochemical barrier 酸性地球化学障
- Previous unconsolidated sand,source of uranium and geochemical barrier are three essential condition for forming uranium deposit. 总结并提出了铀成矿评价的三个必要条件：透水疏松砂层，铀源，地球化学栅。
- Because of the complicated gas-water geochemical barrier formed by the involvement of surface water, the precipitation of uranium occurred in overlying aquifers to form uranium deposit. 在上覆透水层，由于地表水的参与形成复杂的气水地球化学垒，使铀沉积成矿。
- Keywords paleochannel type uranium deposit;epigenetic oxidation zonation;geochemical barrier; 古河道型铀矿床;后成氧化分带;地球化学障;
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- geochemical barrier 地球化学堤
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- She dropped acid in high school. 她高中时代服迷幻药。
- reduction geochemical barrier 还原地球化学障
- The metal is fretted with the acid. 金属被酸腐蚀。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
- bilateral geochemical barrier 两侧地球化学障碍
- The worker's overalls were badly burned by acid. 这位工人的工作装被酸腐蚀得很厉害。
- An acid can react with a base to form a salt. 酸可以和碱起反应而生成盐。
- This substance must be treated with acid. 这材料得用酸来处理。
