题目内容
用半波带法讨论单缝衍射暗条纹中心的条件时，与中央明条纹旁第二个暗条纹中心相对应的半波带的数目是2。
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用菲涅耳半波带法可以精确求解出夫琅和费单缝衍射的光强分布函数。
According to construction types, prepositional phrases such as "in the classroom" is regarded as an/a ( ) construction.
( )refers to a major constituent of sentence structure in a binary analysis in which all obligatoryconstituents other than the subject is considered together.
In the complex sentence, the incorporated or subordinate clause is normally called a ____ clause.
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