1·Paintings must have rigid stretchers so that the canvas will be taut, and the paint must not deteriorate, crack, or discolor.
画必须有坚硬的画架，这样画布才会绷紧，而且颜料不能变质、开裂或变色。
2·Nevertheless, researchers have discovered that a process long known to discolor and toughen foods may also contribute to age related impairment of both cells and tissues.
然而，研究人员发现，一个长期以来众所周知的使食物变色和变硬的过程也可能与年龄相关的细胞和组织损伤有关。
3·The dwarfing degree of SH interstocks could affect the discolor index and the contents of chlorophyll, amylum, and soluble sugar.
SH系中间砧的矮化程度影响红富士苹果叶片的变色指数以及叶绿素、可溶性糖、淀粉的含量。
4·Stainless steel, which is what Buck USES, does not discolor easily.
巴克使用的不锈钢并不容易变色。
5·It also exhibits high thermal stability and a low tendency to discolor.
它还具有较高的热稳定性和较低的倾向变色。
1·These are pale discolor areas on the gills that is not normal, she says.
这些都在鳃是不正常的苍白褪色的地区，她说。
2·Black matte enameled interior does not discolor or rust and gets better with use.
黑色磨砂漆包线内部不褪色或生锈，更好的获取与使用。
3·Don "t worry, this is not easy to discolor."
放心吧，这个不容易褪色。
4·UV resistant - does not discolor in the sunlight.
抗紫外线——日光曝晒下不易褪色。
5·UV resistant, does not discolor in the sun light.
抗紫外线，日光曝晒下不褪色。