鳃盖

Thymus of L japonicus lies in the upper corner on the hack of branchia and on the back of the 4 gill vertebrae.

花鲈胸腺位于鳃腔背侧上角深处，第4鳃弓背侧，紧贴在鳃腔上皮层之下，为鳃盖粘膜所覆盖，呈一对卵圆形的薄片组织。

Any of several marine fishes of the family Trachinidae,having venomous spines on the gill cover and first dorsal fin.

龙鳖龙鳖科的几种海鱼之一，在鳃盖和第一背鳍上的许多毒刺鱼的鳃和猫的肺是类似物。

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snail s or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap cover in g an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

Gill movement is a necessary condition of the gill breathing, it makes the water flow along a certain way, gill septum and gill cover is being opened, as if pumping the role of the water from the mouth out.

鳃的运动是鳃呼吸的必需条件，它使水沿着一定途径流动，鳃隔和鳃盖的启开，犹如泵的作用，将水从口腔中抽出。

A lid or flap cover ing an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

Opening the disease fish opercular,we can see maggot-like worms on gills .A lot of mucus are on the gills at a serious infection and the gill-terminal expands ,there is congestion or bleeding or a "mud drag" phenomenon.

掀起病鱼鳃盖，可见鳃丝上有蛆状虫体，严重感染时，鳃上粘液很多，鳃丝末端膨大，有淤血或出血点，或有"拖泥"现象。

The results showed that the American shad fingerlings stopped opercular movement less than half an hour after anesthetia when the fish were exposed to concentration of MS-222 at 75mg/L, clove oil at 20mg/L and bezocaine at 40mg/L. The fish recovered to normal behaviors again after exposed in air for less than 10min when transferred into fresh water. The shad fingerlings had good anaesthesia for more than 12h at 20-30mg MS-222/L, 8-10mg/L clove oil and 20-30mg/L benzocaine. The anesthetic effects were enhanced at high water temperature and changed with fish sizes. Small fish were more easily in good anaesthesia than the bigger one in MS-222 while the opposite case was found in clove oil and in benzocaine.

麻醉试验结果表明：在较高麻醉浓度（MS-222为75mg/L以上，丁香油为20mg/L以上，苯唑卡因为40mg/L以上）下，鱼很快（30min内）停止鳃盖张合运动，且停止鳃盖运动的鱼在空气中暴露一定时间（10min内）后也能够复苏；在适宜的麻醉浓度（Ms-222为20~30mg/L，丁香油为8~10mg/L；苯唑卡因为20~30mg/L）下，鱼能够进入麻醉状态，且能保持很长时间(12h)；麻醉效果随着水温的升高而增强；在20mg/L MS-222麻醉剂下，小规格鱼较大规格鱼更容易进入麻醉状态，而在10mg/L丁香油和20mg/L苯唑卡因麻醉剂下，小规格鱼却难进入麻醉状态。

The outside gill formed the three fingerlike, in the 22、23 stage, it developed at the peak, in the 25 stage, the operculum folded the outside gill in the operculum antrum, the inside gill formed, at the same time the outside gill degenerated.

外鳃进一步发育，形成了三排指状外鳃，到22-23期，达到发育高峰。到胚胎发育25期，外鳃被鳃盖包在鳃盖腔里面，内鳃开始形成，同时外鳃开始退化消失。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。