During the evolution of delivery theories, there are three kinds of views: zero-delivery view, limited-delivery view and open-ended delivery view.

在制度变迁过程中有三种交割观点，即零交割观点、限制交割观点和无限制交割观点。

youdao

Producers of bits can use the Internet to reduce their delivery times to practically zero.

CNN: ASIANOW - TIME Asia

The successful delivery of the serum was no foregone conclusion--temperatures of 50 or more below zero, blizzards, cracking river ice and winds that would suddenly hit a sled at 60 mph to 70 mph were everyday hazards.

FORBES: Going To The Dogs