A control method of compensation for the top hammer displacement error caused by pressure loss and combining the single neuron PID is proposed in this paper.

提出一种加入补偿因压力损失导致顶锤位移产生的误差，并结合单神经元pid的控制方法。

youdao

Vacuum process Iron plate Frame, Bass section terminated by agraffe, Slow closing damping system Fallboard. Ebony Black Keyboard, German Roslau string, German FFW top hammer.

真空处理的钢板、低音区由搭扣终止、键盘盖带缓降系统。

youdao

Then you put the longer logs on top of that, hammer in some spikes, and you have your bridge.

然后把更长一些的原木搭在上面，订一些钉子，于是一座小桥就成了。

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Sitting at the table at the Federal Reserve Bank of New York Saturday as Wall Street's top bankers tried to hammer out a deal to save Lehman from liquidation, Merrill's chief executive John Thain realized his firm could be next if he didn't strike a deal with a bank.

FORBES: Magazine Article

He is due to meet top EU officials on Tuesday to hammer out details of what changes Budapest is willing to make to the laws to comply with EU treaties.

BBC: Thousands of Hungarians rally to back embattled PM Orban

But in the time since then, Twitter has really dropped the hammer on developers who have built businesses on top of the platform.

FORBES: The Anti-IPO: Is Apple Grooming Twitter For All-Out Acquisition?