限定性和非限定性定语从句有没有逻辑上的区别啊？

海蓝

请问：限定性和非限定性定语从句除了文法上的区别，还有没有逻辑上的区别啊？

OG 234
The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered by the eye.
(A) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long to be registered by the eye
(B) however, the wavelength of infrared radiation--0.1 millimeters--is top long to be registered by the eye making it invisible
(C) infrared radiation, however, is invisible because its wavelength--0.1 millimeters--is too long for the eye to register it
(D) however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible
(E) however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible
选A
对于E选项，OG特别提到，由that引导的限定性定语从句含有“not all wavelengths of 0.1 millimeters are too long for the eye to register”之意。逻辑不当，应该换成由 which 引导的非限定性定从。

OG 237
It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) may be caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) are caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other
选E
对于C选项，OG 也说，“the phrase two stars that orbit each other illogically suggests that there are two particular stars causing all the phenomena in question, rather than various sets of stars in various locations.”

请教一下，限定性定从和非限定性在逻辑意思上到底有什么区别啊？～～谢谢！～～

zjxmlily

限定性定从相当于对修饰的部分的范围做了限制，这个定从是不能随便去掉的，否则意思必然改变，而非限定从是对修饰部分的附加说明，去掉也不会影响到句子的意思。这两个用法是不能互掉的

海蓝

哦哦哦哦～～谢谢MM～～恍然大悟啊～～