To prevent discoloration of ( a photographic image ) by washing or coating with a chemical preservative.

Discoloration of Yunnan Hemlock lumber during drying is a major problem that caused degradation of lumber.

云南铁杉在干燥过程中的变色问题是困扰许多木业企业的一个技术难题.

Results The discoloration of compound salicylic acid lotion could be markedly adding the suitable stabilizer.

结果合适的稳定剂大幅度延缓了复方水杨酸洗剂的氧化变色速度.

Spilt acid discolored the floor.

泼出的酸弄得地板褪色。

Frequently, early in the disease, the skin is discolored by a marked erythema.

常在疾病早期, 皮肤因有明显的红疹而变色.

The goods have been discolored and heavily saturated by rain that they are unsaleable.

货物被雨水严重浸湿和污染,无法销售.

Then the skin can become thick and discolored.

然后皮肤变得厚而无色泽.

The building was discolored by smoke.

这座建筑物被烟薰得变了颜色.

Fruit can be discolored by the use of spray.

使用喷雾剂就可以使水果改变其颜色.

The gray walls discolored by damps and crumbling with age.

灰色的墙壁年代已久,因潮湿已经显得斑斑驳驳.

The detergent discolored my shirts.

他们用清洁剂给我的衣服脱色了.

A discolored spot , smudge, or area ; a stain.

为了弄脏或 沾 污而涂抹.

We saw his lips were puffed both eyes were discolored. His face discolored and swollen.

我们看见他嘴唇肿起,两眼充血,脸庞青肿.

Notice the canals in your community : do they appear healthy or are they smelly and discolored?

请关注你周围的河沟: 河水是正常的还是有臭味并且变了颜色?

He had bad teeth, irregular and discolored.

他牙齿长得不好，参差不齐而且有些发黄。

Charles looked round him at the dingy smoke-discolored walls, the worm-eaten staircase.

查尔斯环视被烟熏黑的墙壁和虫蛀的楼梯.

The mechanism of the improvement and discoloring the adsorbents andthe additive was elucidate.

从理论上阐述了提高粉煤灰基质多孔吸附材料吸附、脱色性能的机理.

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

而事实上, 有些藻类可以有害却不会使水变色.

Plastic tends to discolour with age.

塑料久而久之便会退色。

This discolouration is completely harmless.

这种变色是完全无害的.

Dual-action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.

这种双重作用的牙膏,含有木糖醇和小苏打,能清除牙齿表层的污垢和污色.