perched water[水文] 上层滞水;栖止水;滞水;[水文] 栖留水
perched aquifer上层滞水含水量;表层含水层;滞水含水层
perched stream栖止河;[水文] [地理] 滞水河
perched syncline向斜脊
perched dune坡顶沙丘
perched mound上层滞水丘
Perched Precariously晃晃
perched difference悬差
perched block[地质] 坡栖岩块;坡栖石块
The average recoveries of AVM and IVM in the tissues of perch are 80.1%~90.0%and 73.9%~85.5%,respectively.
鲈鱼各组织平均回收率AVM均在80.1%~90.0%之间,IVM则在73.9%~85.5%之间。
参考来源 - 阿维菌素在鲈鱼组织中的富集消除规律研究V-I(不及物动词) If you perch on something, you sit down lightly on the very edge or tip of it. 轻坐在; 轻落在 (边上或顶上)
He lit a cigarette and perched on the corner of the desk.
他点了一支烟,轻轻地坐在书桌角上。
V-I(不及物动词) To perch somewhere means to be on the top or edge of something. 坐落于 (某物顶部或边缘)
...the vast slums that perch precariously on top of the hills around which the city was built.
…摇摇欲坠地坐落于城市中心群山之顶的大片贫民窟。
V-T(及物动词) If you perch something on something else, you put or balance it on the top or edge of that thing. 把…稳置于 (某物顶部或边缘)
The use of steel and concrete has allowed the builders to perch a light concrete dome on eight slender columns.
钢筋混凝土的使用使建筑者们能将一个轻巧的混凝土穹顶架在8根细柱上。
V-I(不及物动词) When a bird perches on something such as a branch or a wall, it lands on it and stands there. (鸟) 栖息
A blackbird flew down and perched on the parapet outside his window.
一只乌鸫飞下来,栖息在他家窗外的矮墙上。
N-COUNT(可数名词) A perch is a short rod for a bird to stand on. (鸟的) 栖木
A small, yellow bird in a cage sat on its perch outside the house.
屋外,一只小黄鸟站在鸟笼的栖木上。
N-COUNT(可数名词) A perch is an edible fish. There are several kinds of perch. 河鲈