收信

gǎn shàng yóu jú de shōu xìn shí kè

赶上邮局的收信时刻

catch the post

zhè fēng xìn de shōu xìn dì zhǐ shì yī gè xìn xiāng hào

这封信的收信地址是一个信箱号。

The letter was addressed to a box number.

fā xìn yǔ shōu xìn tōng dào

发信与收信通道

sending and receiving message channel

shōu xìn gōng lǜ

收信功率

receiving power