  The no-masking theorem says that masking quantum information is impossible in
a bipartite scenario. However, there exist schemes to mask quantum states in
multipartite systems. In this work, we show that, the joint measurement in the
teleportation is really a masking process, when the apparatus is regarded as a
quantum participant in the whole system.Based on the view, we present two
four-partite maskers and a tripartite masker. One of the former provides a
generalization in arbitrary dimension of the four-qubit scheme given by Li and
Wang [Phys. Rev. A 98, 062306 (2018)], and the latter is precisely their
tripartite scheme. The occupation probabilities and coherence of quantum states
are masked in two steps of our schemes. And the information can be extracted
naturally in their reverse processes.
