是的，当介词是in的时候才有这样的用法。book in hand是a book in her hand的省略形式，a和her不能只省略其中的一个，即要么同时省略，要么同时保留。在“名词+介词短语”这类独立主格结构中，当介词是in时，前后的两个名词前通常都省略限定词，且不用复数。若改用with复合结构，则必须加上限定词，亦可用复数。下面各句都正确（句2很少见）：
The teacher came in, book in hand.
The teacher came in, a book in her hand.
The teacher came in, with a book in her hand.
The teacher came in, with some books in both hands.
