화학분석

Chemical Analysis

화학소화기

Chemical Fire Extinguisher

화학제품운반선

Chemical Tanker

화학청소

Chemical Cleaning

화학탈수기

Chemical Dehydrator

환강격자

Round Bar Grating

환기지수

Air Change Rate

환등기

Projector

환산

Conversion

환상격벽

Ring Bulkhead