Complex sentence: In 1904 more provinces were created and members of the council sat for two assembly terms so two members (MLCs) represented each province, elected in rotation one at a time by majority-preferential (AV) vote.
Split into simpler sentences: In 1904 more provinces were created and two members (MLCs) represented each province. The terms for members were two Assembly terms, and one member was elected in rotation at each election, by majority-preferential (AV) vote.