缩写是TD。全称：Technical Department。
重点词汇：
1、technical
英 [ˈteknɪkl] 美 [ˈteknɪkl]
adj.技术的;技能的;工艺的;专门技术的;技巧的;技艺的;专科的;专业的。
Many technical experts at the time had doubts about the technology.
当时，许多技衡胡升术专家对那种工艺抱有疑问。
2、department
英 [dɪˈpɑːtmənt] 美 [dɪˈpɑːrtmənt]
n.部;司;局;处;系;(医院的)科;部门。
The department said many countries had reciprocal agreements for health care with Britain.
该部门称许多咐老国家和英国签订了医疗卫生互惠协议。
扩展资料：
be sb's department
(informal) 做敏某人的职责范围（或知识范围）
to be sth that sb is responsible for or knows a lot about
Don't ask me about it─that's her department.
这事别问我——那是她的职责范围。
the Department of Trade and Industry
工业贸易署
the Treasury Department
财政部
a government/university, etc. department
政府部门、大学学系等
the marketing/sales, etc. department
营销、销售等部门
the children's department (= in a large store)
儿童用品部
the English department
英语系
