Max. transp levels-this controls to what depth transparent objects will be traced .

最大透明级别。控制透明物体跟踪深度。

Seen from their occupation , they were mainly garrison soldiers , officials and their households , businessmen , visitors and exiled persons . Seen from the migratory characters , they were administrated by the government or compelled to transp lant .

从职业看,多为驻防军士、任职官员及其家眷,亦有来粤经商、游教及被流放人员;从迁移性质看,多系受政府支配,甚至是被迫迁移的。