discolour

A tooth which has been hit hard may discolour

受过重击的牙齿可能会变色。

Wear resistance and discolour resistance are dependent not only on Sn content but on thickness of plating film .

镀层的耐磨性和抗变色性不仅与锡含量有关，也与镀层厚度有关。

The pipes were beginning to rust , discolouring the water .

管子开始生锈，水都变颜色了。

Plastic tends to discolour with age .

塑料久而久之便会退色。

Some oil had seeped out , discolouring the grass .

有些油渗出来了，把草地染得变了颜色。

The apple was cut yesterday and it is already discoloured .

这个苹果是昨天切开的，现在已经变色了。

The sun discoloured the curtain day by day .

太阳逐渐把窗帘晒褪色了。

Sunlight had discoloured the bright red curtain .

日照使这朱红（色的）窗帘褪了色。

These murals have been discoloured with the passage of time .

这些壁画已年久失色。

China 's wetland project could also cause social harm that discolours any environmental good .

中国的湿地项目也可能造成社会危害，让环境收益减少。

Study on New Type Silver Discolour Inhibitor

新型银变色抑制剂的研究

Observation on clinical treatment of discoloured teeth by light-cured - resin following home bleaching

软托盘脱色法、光固化树脂治疗变色牙的临床研究

Technology of Preventing Copper and its Alloys from Discolouring

国外铜和铜合金防变色工艺

The leads must be bright and no longer tarnished or discoloured .

导线必须是亮泽的，不再无光泽或变色。

The flywheel must be replaced if it is damaged or discoloured .

如果表面损坏或脱色，则必须更换飞轮。

Her father led the way , a corner of the bedding roll in his discoloured hands .

父亲走在前面，变了颜色的手抓着行李的角角。

Copper and copper alloy wires are easily to be oxidized and discoloured during production , transportation and storage .

铜及铜合金线在生产、贮存、运输过程中极易发生氧化及变色。

Sunshine discoloured many materials .

阳光使许多材料褪色。

Corrosion can be identified by leads that are tarnished or discoloured instead of bright .

如果导线失去光泽或变色而不再亮泽，则可以判断为已受腐蚀。

Make sure the insecticide penetrates well into the surface : but be careful , as treatment may discolour light woods .

要确保杀虫剂深入表层，但也要当心，因这种处理会使淡色木材变色。

Remove any dead , diseased or damaged wood which is flaking or discoloured .

剪掉任何正在脱落或变色的枯死的，患病的或损坏的枝条。

Dice the apples and toss with a little lemon juice to prevent discolouring .

将苹果切片，和上少许柠檬汁防变色，沥干。

Sunlight had discoloured the bright red curtain . The color of the carpet will not fade over time .

日照使这朱红（色的）窗帘褪了色。这地毯用久了也不会褪色。

Immediately above his head there hung three discoloured metal balls which looked as if they had once been gilded .

他的头顶上面挂着三个褪了色的铁球，看上去以前曾经是镀过金的。

The kinds discolour phenomena were categorized to different flowers in this study and tried to different flowers in this study and tried to find their cause .

以不同花卉材料在压制过程中颜色的变化为研究对象，对其色变现象进行了分类归纳。

with vacant , sightless eyes staring up at the discoloured ceiling .

他僵卧在地板上，一双茫然无光的眼睛凝视着褪了色的天花板。

The sky was a tumult of discoloured clouds .

天空中乱纷纷地浮动着污浊的云。

and through lines of discoloured linen ,

钻过一行行晒得褪了色的衣服，

Coffee stains discoloured her dress .

咖啡的污迹使她的衣服变色了。

T Trace selenium (ⅳ) can catalyze the discolouring oxidization of methylene blue by potassium bromate in nitric acid medium .

在硝酸介质中，硒（Ⅳ）能催化溴酸钾氧化亚甲蓝使之褪色。