discolouration

简明释义

英[dɪsˌkʌləˈreɪʃn]美[dɪsˌkʌləˈreɪʃn]

n. 变色，褪色

英英释义

单词用法

同义词

反义词

例句

1.The discolouration in process of routine H. E stain was studied.

就常规H·E制片程序中的褪色问题进行了探讨。

2.While standard medical terminology uses jaundice for a symptom (yellow discolouration of skin), in India the term is used to refer to the illness in which this symptom is most common.

标准医学术语中，“黄疸”是一种症状（皮肤的变黄），而在印度该术语用于指代急性肝炎（黄疸是其最常见的症状）。

3.Inspect paper visually for wrinkles, holes, discolouration, streaks or other defects and take corrective action.

目视检查纸张褶皱，孔洞，变色，条纹或其他缺陷，并采取纠正措施。

4.On the other hand, common side effects associated with oral CHX use include tooth discolouration, irritation and, very occasionally, serious allergic reactions, they said.

而用抗菌剂氯己定CHX就会产生通常熟知的副反应如牙齿脱色，发炎，多数情况下还会导致严重口腔过敏反应。

5.Actively watch for cavities if you spot any discolouration or pitting then they could be signs of cavities.

积极为观赏溶洞如果您现货任何变色或点蚀，然后他们可以迹象蛀牙。

6.Symptoms of over-exposure may include bluish discolouration of lips and tongue, severe headache, nausea, confusion, dizziness, shock, respiratory paralysis, death.

过量吸入后的症状可能包括嘴唇和舌头发青，严重的头疼、恶心、昏愦、头昏眼花、休克、呼吸麻痹和死亡。

7.Avoid any whose odour, is in any way unpleasant, or that have soft spots and obvious sign of discolouration.

避免任何的气味，有任何不愉快，或有明显迹象变黄、软点。

8.This discolouration is caused by higher than expected levels of iron, and indicates that the solution may be losing effectiveness.

这变色的原因是高于预期水平，铁，并指出解决办法可能失去效力。

9.These kind of movie posters get better with age and all examples nowadays are distressed and tattered with RIPS, creases and discolouration.

这些电影的海报得到一种随着年龄的更好，所有的例子现在的苦恼和撕裂，破烂的折痕和变色。

10.The old photograph had a noticeable discolouration due to exposure to sunlight.

这张旧照片由于暴露在阳光下，出现了明显的褪色。

11.After washing, I noticed a discolouration on the white shirt, making it look stained.

洗完后，我发现白衬衫上有了变色，看起来像是沾上了污渍。

12.The dentist explained that discolouration of teeth can be caused by certain foods and drinks.

牙医解释说，牙齿的变色可能是由某些食物和饮料引起的。

13.The walls of the house showed signs of discolouration from water damage.

房子的墙壁因水损坏而出现了变色的迹象。

14.We need to address the discolouration on the ceiling before we repaint the room.

在重新粉刷房间之前，我们需要处理天花板上的变色问题。

作文

Discolouration is a term that refers to the change in color of an object or surface, often indicating damage or deterioration. In everyday life, we encounter various instances of discolouration (变色) that can be attributed to different factors. This essay will explore the causes, effects, and solutions related to discolouration (变色) in both natural and man-made environments. One common example of discolouration (变色) occurs in our homes. Over time, walls painted with vibrant colors may start to lose their brightness, resulting in a dull appearance. This change can be caused by exposure to sunlight, dust accumulation, and humidity. The ultraviolet rays from the sun can break down the pigments in paint, leading to a faded look. Additionally, dirt and grime can accumulate on surfaces, further contributing to the discolouration (变色). To combat this issue, regular cleaning and maintenance are essential. Homeowners can also opt for high-quality, UV-resistant paints that are designed to withstand environmental factors better than standard options. In nature, discolouration (变色) can be observed in various forms, particularly in plants and animals. For instance, leaves may change color during the fall season as chlorophyll breaks down, revealing vibrant hues of red, orange, and yellow. However, discolouration (变色) can also indicate stress or disease in plants. When a plant experiences nutrient deficiencies or pest infestations, its leaves may turn yellow or brown, signaling that something is wrong. Gardeners and horticulturists must be vigilant in monitoring their plants for signs of discolouration (变色) and take appropriate action, such as adjusting watering schedules or applying fertilizers, to restore the health of the plants. Another significant area where discolouration (变色) plays a crucial role is in the field of art and antiques. Collectors and conservators often face challenges due to the discolouration (变色) of artworks over time. Factors such as exposure to light, temperature fluctuations, and humidity can cause paintings and sculptures to lose their original colors. For example, a once-vibrant painting might become muted or yellowed due to the aging of materials. Experts in art conservation utilize various techniques to address discolouration (变色), including cleaning, restoring, and using protective coatings to prevent further damage. Moreover, discolouration (变色) is also a concern in the food industry. Many fruits and vegetables undergo discolouration (变色) when they are exposed to air or improper storage conditions. For instance, cut apples tend to turn brown due to oxidation, which can affect their appeal and marketability. To minimize this effect, producers often use techniques such as vacuum sealing or applying citric acid to maintain the freshness and color of their products. Consumers can also take steps at home, such as storing cut fruits in airtight containers or using lemon juice to slow down the discolouration (变色) process. In conclusion, discolouration (变色) is a phenomenon that affects various aspects of our lives, from our homes to nature and even the art world. Understanding the causes and effects of discolouration (变色) allows us to take proactive measures to mitigate its impact. Whether through regular maintenance, careful monitoring, or employing preservation techniques, we can preserve the beauty and integrity of our surroundings, ensuring that they remain vibrant and appealing for years to come.