I lucked out with this Iwill XA100 v1.2 on ebay. Built in 1998, it seems to be stable for the technology it supports[1] and fits all my technical requirements. More importantly, the manual is readily available online[2].
the Baseline Requirements (BRs).，详情可参考新收录的资料
and sentence (4) should say something about whichever sentence (3) didn't;。业内人士推荐新收录的资料作为进阶阅读
The same proportion suggested it was the result of security concerns, such as theft, shoplifting and violence against shopworkers