3r关于幽冥武器和装备的重量

[间隙妖怪]

An object that the creature relinquishes loses its incorporeal
quality (and the creature loses the ability to manipulate the
object). If an incorporeal creature uses a thrown weapon or a
ranged weapon, the projectile becomes corporeal as soon as
it is fired and can affect a corporeal target normally (no miss
chance).

TOM164页
就算作为投掷武器，离开手的时候就失去虚体特性了

[艾思哲]

那也可以理解为是因为从某种意义上来说在这种情形下变成实体对虚体持有者来说更为有利

If an incorporeal creature uses a thrown weapon or a
ranged weapon, the projectile becomes corporeal as soon as
it is fired and can affect a corporeal target normally (no miss
chance).