A person who does not hold a substantive visa (that is a visa that is not a Bridging visa or a Criminal Justice visa) and has had a visa refused or cancelled since their last entry to Australia is prevented by section 48 of the Migration Act from applying for another visa while in Australia, except for certain prescribed visa classes.
From 14 September 2009, these people may now be eligible to apply for a Partner visa in Australia if they meet certain criteria. They must not have had a visa cancelled or refused on character grounds or have had a Partner visa refused since their last entry to Australia, and they must provide with their application:
看样子只要俩人有一个PR了,另一个就算跳船登陆,都能申请配偶PR了...
"A person who does not hold a substantive visa"
"They must not have had a visa cancelled or refused" -- 逾期或者从来就没有签证都不要紧。