Definition of 昼夜兼行 (ちゅうやけんこう)
ちゅうやけんこう
                        昼夜兼行
ちゅうやけんこう
chuuyakenkou
noun
•
        
around-the-clock, (working) day and night(yojijukugo)
Related Kanji
| 昼 | daytime, noon | 
| 夜 | night, evening | 
| 兼 | concurrently, and, beforehand, in advance | 
| 行 | going, journey, carry out, conduct, act, line, row, bank |