Rolling bearings are the key components in the modern machinery, and tough operation environments often make them prone to failure.
Gearboxes are widely used in engineering machinery, but tough operation environments often make them subject to failure.
Applied procedures for the active components loading on substrates provide thermochemical stability of supported layers of active components in tough operation conditions not affecting their reactivity/catalytic activity.
The siege of Halicarnassus was a far tougher operation.
The Iraqis have been deployed, in units stiffened by Americans, in some of the war's toughest operations, like the offensive that recaptured Falluja in November and assaults in other cities, like Mosul and Najaf, where insurgents have threatened to take control.
The timing for a tough military operation was good, Mr. Shah said, because the political parties that usually protest are busy preparing for parliamentary elections on Feb. 18.
Over the years, the government has offered amnesty to reformed militants while waging tough military operations against those who refused it.
And I am very sympathetic to the situation for other Presidents where you make a decision, you're making your best call, your best shot, and something goes wrong -- because these are tough, complicated operations... the day before, I was thinking about this quite a bit".
So, my philosophy in preparing for the toughest special operations training in the world was to let my fitness level be the last thing I had to worry about.
The implication of this analysis is that in addition to tough law enforcement operations, the counter-terrorism programme also engages with "vulnerable" individuals who are at risk of being recruited or have already been recruited by violent extremists.
And he beat the toughest, most experienced operation in politics: the Clintons.
