您要查找的是不是：
- A cellulose nitrate used as a component of smokeless powder. 火纤维素硝酸纤维素，用于无烟的炸药的组成物质
- The nicramine ethers perform two functions in the smokeless powder composition. 硝胺醚在无烟火药成份中有两种作用。
- The nitramine ethers perform two functions in the smokeless powder composition. 硝胺醚在无烟火药成份中有两种作用。
- Smokeless powder refers to colloided nitrocellulose either alone or in admixture with nitroglycerin or other material. 无烟药是指单独的胶质硝化棉或与硝化甘油和其它物质形成的混合物。
- Gunpowder is an explosive substance, used as a propellant for firearms. There are two types, "black powder" and "smokeless powder." Almost all modern guns use smokeless powder. 可以看出,近现代枪炮中使用的基本上都是无烟火药,而不是黑火药。
- Neither of the above substances gives smokeless powders an intense coloration. 上述各物质，没有一个能使无烟药强烈着色。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- The nitramine ethers perform two functions in the smokeless powder composition 硝胺醚在无烟火药成份中有两种作用。
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- They planned to send a rocket to the moon. 他们计划向月球发射火箭。
- Actually they even have vanilla powder. 实际上还可以加香草粉。
- nitrocellulose containing a relatively large amount of nitrogen; highly explosive; used in making smokeless powder. 含有较多氮的硝化纤维，极具爆炸性，用于制造无烟火药。
- He takes a powder every morning. 他每天早晨吃一种粉状药。
- Imagine a rocket that can travel at the rate of light! 想象一下能以光的速度飞行的火箭。
- nitrocellulose containing a relatively large amount of nitrogen; highly explosive; used in making smokeless powder 含有较多氮的硝化纤维，极具爆炸性，用于制造无烟火药
- A rocket manned by trained astronauts will launch soon. 载有受过训练的宇航员的火箭马上就要发射了。
- Scientists have computed the probable course of the rocket. 科学家利用计算机计算了火箭可能运行的轨道。
- Borax is a kind of white powder. 硼砂是一种白色粉末。
- The rocket did one circuit of the earth and returned to base. 火箭绕地球运行一周后返回基地。
- Shaking will settle the chalk powder down. 晃一晃把粉笔末抖落下来。
