着発 ちゃくはつ信管 しんかんじゃありませんでした
chakuhatsushinkanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 着発信管

1. Was not a time-delay fuse.; Was not a detonator.

Past/Perfective
Negative
Polite
Terminal Form
Military