我加入了美国化学学会以获取最新的研究成果。

I joined the ___ACS to access the latest research findings.

医生诊断他患有急性冠脉综合征，需要立即治疗。

The doctor diagnosed him with ___ACS and said he needed immediate treatment.

我们的办公室安装了门禁系统来管理员工进出。

Our office has installed an ___ACS to control staff access.