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- potassium per nitrate 过硝酸钾
- Gunpowder is composed of sulfur, carbon, and potassium nitrate. 火药是由硫、碳和硝酸钾组成。
- No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
- The agency places about 2000 secretaries per annum. 该代理机构每年可为约2000名秘书安排工作。
- Fertilizer consisting of sodium nitrate or potassium nitrate. 硝酯钯由硝酸钠或硝酸钾组成的化肥
- It travels thousands of miles per second. 它一秒钟能走几千英里。
- Can your car make a hundred miles per hour? 你的汽车一小时能开一百英里吗?
- These apples cost five yuan per kilogram. 这些苹果每公斤五元。
- We fail one student per year on average. 我们平均每年有一个学生不及格。
- Keywords zinc - iron alloy electroplating bath;potassium per manganate;bright nickel plating bath;conversion; 镍-铁合金镀液;高锰酸钾;亮镍镀液;转化;
- The car is spinning along120 li per hour. 这车正以每小时120里的速度行进。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- Potassium is necessary to the existence of all living things. 钾是所有生物生存必须的。
- Meals average out at 5 per head. 膳食平均每人5英镑。
- And ammonia had effective selectivity for the separation of potassium nitrate. 氨对硝酸钾的选择分离结晶效果较好。
- Pressure is force per unit area. 压力就是电单位面积上的力。
- The four and a half per cent bonds are in request. 利息四厘五的债券需求量大。
- Ingredients: Gelatin, potassium bromide, potassium iodide, and silver nitrate. 成份：凝胶（明胶），溴化钾，碘化钾，硝酸银
- Last year its retail price fell20 per cent. 去年，它的零售价格下降了百分之二十。
- A postman's wages are 180 per week. 邮递员的工资为每周180英镑。
