allmetal parts shall be such that there is no change at the end of the test according to 5.4 ,except a minor discolouration. in the case of enamelled or coated frame components ,there shall be no infiltration under the varnish of more than 0.5 mm according to iso 7253 .
我译了一点：
金属零件测试时根据５．４　要求进行，
下面的还要劳烦大家帮忙，谢谢了．

window cover是译为窗套，还是窗罩。套要把窗子全塞进去，一般是个立体空间的，而罩可以单层，平面结构就可以了。

window cover是译为窗套，还是窗罩。套要把窗子全塞进去，一般是个立体空间的，而罩可以单层，平面结构就可以了。[/quote]

嗯，就是要看楼主的上下文啊。我上面给的链接里面，window cover不光包括那一层布，还包括木头框架和一些零件。

楼上朋友,你译的不错了,我译成,窗盖,也就是和窗罩差不多的,上面那段金属段文能帮译下吗?好多啊,有些越来越难了,所以要麻烦大家.谢谢了

all metal parts shall be such that there is no change at the end of the test according to 5.4 ,except a minor discolouration. in the case of enamelled or coated frame components ,there shall be no infiltration under the varnish of more than 0.5 mm according to iso 7253 .

按照5.4的要求进行检测时，检测末期所有零件应无变化，颜色的稍许改变除外。根据ISO 7253的要求，对于上釉或有涂层的零件，漆面下的渗透不得超过0.5 mm。

请楼主发英文时注意一下大小写、标点符号和空格。

是的
一个概念
不用感谢，欢迎你的参与。大家互帮互助

all metal parts shall be such that there is no change at the end of the test according to 5.4 ,except a minor discolouration.
所有的金属部件应该在根据5.4测试结束后除少量的掉漆（脱色）外 不能有其他改变（变化）。

或者：
在根据5.4测试结束后，所有的金属部件应该除少量的掉漆（脱色）外 不能有其他改变（变化）。

好的,我会改正的,谢谢

If two frame components are fitted together,the lower component shall not become detached when subjected to twice its own weight in a vertical position .

The tubular connection of the frame components to be fitted together shall have a minimum length of two times the outside diameter .

上段烦请大家帮译，谢谢！我在译整本标准，搞不定啊，只有这里能帮我了．