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- Red oxide of lead 铅丹
- In other words,iron has a strong tendency to rust if exposed to air and damp,for iron and oxygen make rust,or red oxide of iron. 换言之,铁如果接触空气和湿气特别容易生锈,因为铁与氧化合成锈或红色的氧化铁。
- In other words, iron has a strong tendency to rust if exposed to air and damp, for iron and oxygen make rust, or red oxide of iron. 换言之,铁如果接触空气和湿气特别容易生锈,因为铁与氧化合成锈或红色的氧化铁。
- The majority of preparation, however, involve the oxidation of lead(II) salts. 但是,多数PbO2还是通过氧化二价铅的盐来制备的。
- Most pharmaceutical glass melting of arsenic, antimony is still used as a clarificant, and also introduces the oxidation of lead or cadmium oxide. 目前多数药用玻璃熔制尚用砷、锑作为澄清剂,有的还引入氧化铅或氧化镉。
- A ball of lead will weigh down an equal bulk of feathers. 一个铅球要比同样大小的羽毛团重。
- The storage of lead oxide can be done in individual metal drums. 铅氧粉可以放在单独的金属筒内储存。
- A border or rim of lead, as around a windowpane. 铅框一铅制边界或框,如围在窗玻璃格四周的
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- Anodic oxidations may be carried out with alkaline solutions of nitrates, perchlorates, fluoroborates, or fluorosilicates. The anodic oxidation of lead sulphate is well known. 在硝酸盐、高氯酸盐、氟代硼酸盐或氟代硅酸盐的碱性溶液中通过阳极氧化作用可制备PbO2。而硫酸铅的阳极氧化反应则是众所周知的。
- In other words, iron has a strong tendency to rust if exposed to air and damp, for iron and oxygen make rust, or red oxide of iron 换言之,铁如果接触空气和湿气特别容易生锈,因为铁与氧化合成锈或红色的氧化铁。
- We to ed the leak i the ga ipe y mea of lead. 我们用铅堵塞了煤气管上的漏洞。
- One of leading families has show a rivalrous attitudes the others. 主要家族中的一家曾封其他家族显示敌对的态度。
- Strips of lead used to hold the panes of a window. 铅框用于支撑窗玻璃格的铅条
- a red oxide of iron. 一种红色的铁的氧化物。
- Oh,my God! You're casting nickels out of lead. 噢,天啊,你们在用铅造硬币。
- A border or rim of lead,as around a windowpane. 铅框一铅制边界或框,如围在窗玻璃格四周的
- red oxide of leaching [医] 红色氧化铅, 红铅
- APPOINTMENT OF LEAD INDEPENDENT DIRECTOR. 庆源宣布委任新独立董事。
- red oxide of zinc 红锌矿