noun 下载 🔗分享 阀门，活门。 A device that controls the flow of a gas or fluid through a pipe. Examples : "The water valve needs to be turned off to prevent a leak. " 为了防止漏水，需要关掉那个水阀。 technical device machine industry part system 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 气门，阀门 A device that admits fuel and air into the cylinder of an internal combustion engine, or one that allows combustion gases to exit. Examples : "The mechanic replaced the faulty valve in the car engine. " 修理工更换了汽车发动机里那个有故障的气门。 device machine part technical vehicle energy fuel industry 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 阀门，活门 One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction Examples : "the ileocolic, mitral, and semilunar valves" 回盲瓣、二尖瓣和半月瓣。 part physiology organ anatomy technical machine device function system biology science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 （门、窗等的）扇。 One of the leaves of a folding-door, or a window-sash. Examples : "The old wooden window had several worn valves that needed replacing. " 那扇老木窗有好几扇窗扇磨损严重，需要更换了。 architecture part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 电子管 A vacuum tube. Examples : "My grandfather tinkers with old radios; he says they sound better because they use valves instead of transistors. " 我爷爷喜欢摆弄老式收音机；他说老式收音机声音更好听，因为它们用的是电子管，而不是晶体管。 electronics technology device machine 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 瓣，裂片 One of the pieces into which certain fruits naturally separate when they dehisce. Examples : "After the pea pod dried in the sun, each valve separated, releasing the peas. " 豌豆荚在太阳下晒干后，每片裂片都分开了，释放出豌豆。 fruit plant part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 瓣裂，瓣片。 A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, such as in the barberry. Examples : "The barberry anther has a tiny valve that pops open, releasing pollen when a bee lands on it. " 小檗花药上有一种微小的瓣裂结构，当蜜蜂落在上面时，它会像小门一样打开，释放出花粉。 biology plant part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 瓣，壳瓣 One of the pieces or divisions of bivalve or multivalve shells. Examples : "The clam's shell has two valves that open and close. " 这蛤蜊的壳由两个壳瓣组成，它们可以打开和闭合。 animal biology part 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 瓣，壳瓣 One of the two similar portions of the shell of a diatom. Examples : "Under the microscope, the diatom's valve showed intricate patterns. " 在显微镜下，硅藻的壳瓣呈现出精细的图案。 biology organism part plant science 与AI对话词汇游戏阅读练习
verb 下载 🔗分享 用阀门控制，调节 To control (flow) by means of a valve. Examples : "The gardener valved the water to the rose bushes, controlling how much water they received. " 园丁用阀门控制了流向玫瑰丛的水量，调节了它们获得的浇水量。 technical machine system device 与AI对话词汇游戏阅读练习
