事故调查组的英文：
incident investigation unit
incident investigation team
incident investigation branch
n. 事情，发生的事；敌对行动，军事冲突；骚乱，事故
adj. 难免的，附带的
incidence relation
关联关系
axiom of incidence
关联公理
The incident was noticed in a magazine.
这一事件在一份杂志里述及。
n. 研究；调查
No investigation, no recognition.
没有调查，就没有发言权。
You have to investigate into this affair.
你必须调查研究这件事。
They investigate corruption.
他们调查贪污。
n. 单位，单元；装置；部件；部队；单位数
Expand the patriotic united front and unite with all forces that can be united.
壮大爱国统一战线，团结一切可以团结的力量。
The conception of the United Nations was in 1945.
联合国创始于一九四五年。
The meter reads 5500 units.
仪表标明为5500单位。