示威逐步升级，演变成了一场同警察的混战。

The demonstration escalated into a pitched battle with the police.

美国军方希望避免类似越南战争那种逐步升级的态势。

The U.S. military wants to avoid the graduated escalation that marked the Vietnam War.

近几周来，各银行惜贷及慎贷压力正逐步升级。

Pressure on Banks to exercise more parsimony and caution has escalated in recent weeks.

因此逐步升级是威慑和危机处理的一个方面。

Escalation is thus an aspect of deterrence and of crisis management.

结论通过家庭干预，能及早发现患者逐步升级的情绪变化，尽快采取应急预案，降低肇事肇祸等级。

Conclusion Escalating emotional changes of patient can be found early, emergency plan can be carried out as quickly as possible, and accident levels can be lower by family intervention.