This proves to be a relatively effective task with the exception of the man at the top of the list, who is elusive.
Later, relatively effective gas masks were developed, and these greatly reduced the effectiveness of gas as a weapon.
The night watch, though relatively effective, only served during the night.
This was relatively effective except when the sky was overcast.
What we are using now is relatively effective and mosquito specific.
Which meant that whatever else he might be, this George creature was a relatively effective pilot.
One of these, which has proved relatively effective, is the Team ministry or benefice.
There are therefore possibilities for a relatively effective approach, which is something that in my opinion we should bear in mind.
Perhaps statutory exceptions are needed in order to provide a relatively effective solution to the problem.
Murals can be a relatively effective tool of social emancipation or achieving a political goal.