3 sentences

1. 后勤部门负责物资的供应。

   hòu​qín bù​mén fù​zé wù​zī de gōng​yìng.

   The logistics department is responsible for the supply of materials.

   Source: Dong Chinese Dictionary

2. 他在校内主要负责后勤协管工作。

   tā zài xiào nèi zhǔ​yào fù​zé hòu​qín xié guǎn gōng​zuò.

   At school, he is mainly responsible for logistics coordination.

   Source: Dong Chinese Dictionary

3. 后勤部队负责保障前线的油料供应。

   hòu​qín bù​duì fù​zé bǎo​zhàng qián​xiàn de yóu​liào gōng​yìng.

   The logistics troops are responsible for ensuring the fuel supply for the front line.

   Source: Dong Chinese Dictionary