In light of traditional PID controller parameters optimization with manual cut-and-try method, a novel kind of PID parameters optimization strategy based on ACA (Ant Colony Algorithm) was proposed.

针对传统的PID控制器参数多采用试验加试凑的方式由人工进行优化，提出了一种新型的基于蚁群算法的PID参数优化策略。

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They cut prices drastically to try and shift stock.

他们大幅度降价，试图销出存货。

《牛津词典》

Or they can cut their spending and try to get their finances under control.

或者他们也可以减少开支，尽量控制自己的财务状况。

youdao

An outright government defeat would be a huge problem for David Cameron, leaving him precious little room for manoeuvre in euro-negotiations - and facing defeat if he fails to deliver a budget cut, and has to try to persuade the Commons to authorise an above-inflation budget settlement.

BBC: Fright night for the government?

And while the veep is getting his daily health-care headline with this week's Florida get-out-the-seniors-vote tour, Bush has been mired in number-crunching his own tax cut and wondering whether Dick Cheney could maybe try to grab some headlines that don't involve the campaign's lack of a prescription-drug plan.

CNN: Tighten your saddles! Now it's a horse race

The unerring McFadden landed his second penalty to cut the deficit and then powered over for a 23rd-minute try following a neat offload from man of the match Isa Nacewa.

BBC: Leinster 20-14 Glasgow Warriors