摩擦火柴

Lundstrom's safety matches were safe because the red phosphorus was non-toxic;it was painted on to the striking surface instead of the match tip, which contained potassium chlorate with a relatively high ignition temperature of 182 degrees centigrade.

Lundstrom 安全火柴很安全是因为红磷是无毒的；它被涂在摩擦的表面取代了那种顶端包含氯化钾的火柴由于它的高达182度的燃点。

Antimonous sulfide is one kind of black or dark gray powder ,which is widely used in the completion of rubber, glass lining, explosives, matches, fireworks, friction equipment, all kinds of medicine carrier, as well as to replace the antimony oxide flame retardants.

三硫化二锑（ Sb 2 S 3）是种黑色或深灰色粉末广泛用于军工、橡胶、玻搪、炸药、火柴、烟花鞭炮、摩擦器材，各种医药载体、以及代替氧化锑做阻燃剂。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。