interdepartmental

a. 各部间的

in.ter.de.part.men.tal

adj.（形容词）
Involving or representing different departments, as of a business, an academic institution, or a government:
各部门间的；各系间的：包括或代表不同的商业，学术机构或政府的部门的：
例句：
.the petty interdepartmental squabbling that surrounds the making of . . . foreign policy.(Morton A. Reichek)
.围绕着制定外交政策而引起的各部门间的小小争吵.(莫顿A.赖谢克)