"has been locked on" is a correct and usable part of a sentence in written English.
You can use it when you want to describe the state of being fixed or secured, or even an ongoing process or feeling. For example: "His gaze has been locked on the prize since the beginning of the race."
Gibbons admitted: "It is remarkable how much of the American comic book industry is based on superheroes and has been locked on that for so long.
Serena has been locked on 21 grand slam titles since winning Wimbledon last year, losing to Roberta Vinci in her US Open semi-final and to Garbiñe Muguruza in the French Open final last month.
Neither of them get much to say, although "Black suit man" is the subject of a heart-rending scene where James struggles to dismantle a bomb vest which has been locked on to the man.
Updated at 2.41am GMT 2.02am GMT Vote on the same-sex marriage bill Doors have been locked on the motion for the bill to be read a second time.
The 24-year-old resident of the suburb Sterling Heights, who has been locked up on other charges, pled not guilty on Monday.
The country in question is Macedonia, where an internationally recognised Christian bishop has been locked up on charges which many human-rights campaigners regard as trumped-up.
This week, he has been locked in on Penn State's biggest test, 10th-ranked and once-beaten Ohio State on Saturday night in Columbus.
A psychology professor has been locked up on suspicion of facilitating the gruesome murder 18 years ago of a man who allegedly raped her as a student – prompting campaigners across Europe and the US to rally to her defence.
His army has been locked in an on-again, off-again battle in Homs with elements of the insurgent Free Syrian Army and other antigovernment groups for weeks.
Mr. Assad, who has restricted foreign news coverage of the conflict and has seldom emerged publicly, paid a surprise visit to Homs, where his army has been locked in an on-again, off-again battle with elements of the insurgent Free Syrian Army and other antigovernment groups for weeks.
So far, however, the only water discovered on Mars has been locked away in ice sheets.
