field programmable circuit board 可现场编程电路板
black board field 黑板由板区
In one of my favorite shots, I focussed on a chess board with a very shallow depth of field, and lit up the subject's face so much that the highlights are all blown out.
在我最喜欢的一张作品中,我把焦点对在棋盘上,用非常浅的景深,并把主体的脸照得非常亮以至于高光处严重过曝。
They are the only medevac service to have doctors on board able to transfuse blood while in the air, and they use some of the most innovative techniques in the field.
他们在唯一的救伤直升机上给伤员输血,在战地条件下运用一些最新的技术来救治伤员。
Suitable for tunnel, football field, stage, advertising board, gym, stadium, yard, lawn, garden.
适合隧道,橄榄球场,舞台,广告板,健身房,体育场,庭院,草坪,花园。
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