- 重点词汇
- nitratesn.硝酸盐( nitrate的名词复数 );
- carbonyln.碳酰基，羰基;
- showedv. 给…看( show的过去式和过去分词 );表现出;显露出;上演;
- ndsabbr.national development strategy 国家发展策略;normal dip-slip minor-faults 正断层型小断层;nuclear detection satellite 核探测卫星;
- were be的过去时复数和第二人称单数形式;有时代替 was,用于条件从句、动词 wish 之后等;
- organicadj.有机的;生物的;自然的;系统的;器官的;
- thatdet. 那个，那;
- resultsn. 后果，结果（ result的名词复数 ）;成绩（包括比分、得票、获胜者或当选者名单等）;成功实现的事;
- 相关例句
Chlorotyrosine was not elevated in patients with high MPO or carbonyl levels.
MPO或蛋白质羰基升高的病人3-氯酪氨酸并不升高.
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Pollution survey of 10 carbonyl compounds in air of 6 trains was conducted.
调查评价了6辆列车车厢空气中醛酮的污染状况.
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Iron and nickel carbonyl compounds are poisons to copper-based methanol synthesis catalysts.
羰基铁和羰基镍是铜基合成甲醇催化剂的毒物.
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Emphasis is on substitution and elimination reactions and chemistry of the carbonyl group.
重点强调取代、消除反应和含羰基基团的化学性质.
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分子中具有红外活性的两个原子间的振动频率与化学键的力常数及折合质量有关.
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The carbonyl molybdenum ( cobalt, nickel ) as catalysts used in polymerization is reviewed.
简述羰基钼 ( 钴 、 镍 ) 用于聚合反应中的催化剂.
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The hydrogenation of diene compound and carbonyl group with yeasts was studied.
对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究.
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表面的类脂物氧化后, 产生许多化合物,包括羟基和羰基化合物.
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Silver-coated carbonyl iron powder was prepared by using electroless plating method.
用化学镀法,甲醛为还原剂,制备镀银羰基铁粉.
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Addition to carbonyls is one of the most important reactions in organic chemistry.
对羰基的加成作用是有机化学中最重要的反应之一.
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Iron and nickel carbonyls can deactivate the copper-based catalyst for methanol synthesis.
羰基铁、羰基镍是导致铜基合成甲醇催化剂中毒的物质.
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The grinding block made of carborundum abrasive, is very hard and sharp.
磨光机磨块采用金刚石磨料制成, 硬度极高,磨削锋利.
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We repair the burner brand with carborundum by the technique of ramming.
我们采用碳化硅材料,利用捣打技术恢复一号炉卫燃带.
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动、静环材料: 浸渍树脂 ( 金属 ) 石墨 、 碳化硅 、 硬质合金等.
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动,静环材料: 浸渍树脂 ( 金属 ) 石墨, 碳化硅, 硬质合金等.
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研究了利用碳化硅棚板废渣生产耐火窑具的可行性.
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After setting, the surfaces of the specimens are ground down using carborundum and alumina.
凝固之后, 样品表面连续用金钢砂或氧化铝磨平.
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