使变色

And, in fact, some algae can be harmful without discoloring the water.

而且事实上，有些有害藻类不会使水变色的。

The effects of various antioxidants on the discoloring behavior and the mechanical properties of the PA6 specimens during the course of thermal-oxidative aging were systematically studied.

研究结果表明：使用胺类抗氧剂能明显地改善PA6的抗热氧老化变色性能，还能使其保持较高的热稳定性能和力学性能，并大大延长PA6的静态使用寿命；用酚类抗氧剂/亚磷酸酯抗氧剂组成（1：1）的稳定体系能对改善PA6的耐热氧老化性能产生协同效应。

Hot-Melt Laminating Machine is to laminate two or more different materialstogether through thermal radiation;meanwhile,apply appropriate pressure to make them become one composite.It has high adaptability and stability adn is widely used for laminating cloth leather,shoes soles and foaming sheets.lt use PE pellicle to replace glue which makes stronger effect and longer time for products stock,no discolouring,not easy to tear apart.This machine combines with the actiyator and automatic temperature circuit,which allows thick and thin laminating.accurate control of production quantity and quality,and is able to count amounts.Modern structure.stable performance,simple operation,low faulty rate and long operating life make it a fabulous machine

热熔复合机是通过热辐射对塑料、片材进行热熔贴合处理，把两种或两种以上不同材料相结合并施加一定压力使这复合成一体的加工机器，多用于服装皮革，鞋底鞋材，轻泡片材的复合加工，其优点用于PE薄膜替代胶水贴合，产品时间库存长，无变色迹象，不易撕开，贴合效果强于胶水几倍，具有广泛的适应性和稳定性，本机结合调速电机，自动温控电路，可方便准确的控制生产量和复合质量、可计数计码，是理想的复合设备，该机具有结构新颖，性能稳定，操作简单，故障率低，使用寿命长等诸多优点，我公司该产品设计有三种规格，用户可根据具体生产情况选购，如有需要可定做其它特殊规格的品种。

Air is the enemy of white wine. At its contact the wine oxidizes or becomes colored.

空气是白葡萄酒的大敌，因为与空气接触会使葡萄酒氧化变色。

At its contact the wine oxidizes or becomes colored.

空气是白葡萄酒的大敌，因为与空气接触会使葡萄酒氧化变色。

The products are complete types,chining and beautiful especially,the processing technology for the copper surface,make the products shine forever.

铜装饰条、异型材、铜棒（年产2000T）产品规格齐全，光亮大方，豪华美观，尤其是独特的铜表面处理工艺，使产品永不变色。

Smoking discolours the teeth.

吸烟会使牙齿变色。

The film made by PAn has some miraculous physical and chemical properties ( such as conductivity and electrochromism ,etc.), and could be potentially used in display devices ,secondary battery , gas separation, etc.

掺杂态聚苯胺特有的导电性、电致变色等物理化学性能，使其在显示器件、二次电极、气体分离等方面具有广阔的应用前景。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。