The trap is commonly used for floats, thermal power, free - float, double - metal - style , pulse, and so on - bell - shaped float.常用的疏水阀有浮桶式 、 热动力式 、 自由浮球 式 、 双金属片式、脉冲式 、 钟形浮子式等....

freshly的音标：freshly的英式发音音标为：['freʃli]freshly的美式发音音标为：['frɛʃlɪ]...

frequently的反义词有：infrequently, rarely。adv.frequently的反义词（时常;屡次）：infrequently。frequently的反义词（其他释义）：rarely。...

freeze的反义词有：boil, melt, melt。vt. & vi.freeze的反义词（结冰;凝固）：boil, melt。freeze的反义词（其他释义）：melt。...

n.震颤...

A wage freeze was imposed on all staff earlier this month.这个月早些时候，所有员工的工资都被冻结了。Freeze it only until firm but not rock solid.把它冻硬，但是不要硬得像石头一样。The coffee is freeze-dried to seal in all the flavour.咖啡经冷冻干燥以保留原汁原味。...

The architect would often just write something like "beautiful fretwork" on the drawing.建筑师通常只会在图上写著“美丽的浮凸雕工”之类的说明。...

adv.频繁地，屡次地，往往，动，动辄...

Basic food products are frequently unavailable in the state shops.在国营商店里经常连一些基本食品都买不到。He also very frequently filled the post of head godfather in baptisms of the subtly - jovial kind.他也经常在那种微妙快活的洗礼中充当首席教父.By contrast, o...

fresh的音标：fresh的英式发音音标为：[freʃ]fresh的美式发音音标为：[frɛʃ]...

The drug can reduce the frequency and severity of attacks.这种药能降低发病次数和严重程度.Accidents are happening with increasing frequency.事故发生得越来越频繁.Speech is made up of sound waves that vary in frequency and intensity.语音是由不同频率和强度的声波组...

n.给予自由的人或事物adj.自由的( free的比较级 )，免费的，空闲的，摆脱…的...

n.互济会会员...

fre的音标：fre的英式发音音标为：[f're]fre的美式发音音标为：[f're]...

an infrequent guest稀客Some words are too infrequent to be worthy of inclusion in the dictionary.一些单词的使用频率太低，没有必要收入词典。Barriers between nations are reared by slow and infrequent communication.国与国之间的隔阂是由沟通缓慢而又太少形成的....John&#...

freesia的复数形式为：freesias...

proofreading的音标：proofreading的英式发音音标为：[p'ru:fri:dɪŋ]proofreading的美式发音音标为：[p'rufridɪŋ]...

n.雀斑，斑点v.（使）生斑点，（使）生雀斑...

fresh的反义词有：stale, old, salt, trite, old, stale, salt。adj.fresh的反义词（新鲜的;淡的）：stale, old, salt。fresh的反义词（其他释义）：trite, old, stale, salt。...

freight的现在完成时为：freighted...

A limousine swept her along the busy freeway to the airport.一辆豪华轿车载着她沿着拥挤的高速公路飞速驶向机场。The speed limit on the freeway is 55mph.高速公路限速每小时55英里。an accident on the freeway高速公路事故...

frequent的一般过去时为：frequented...

infrequent的近义词/同义词有：irregular, occasional, rare, sparse, scarce, scattered, uncommon, scarce, sparse, unique, rare, uncommon, irregular, occasional。adj.infrequent的近义词（稀少的;不规则的）：irregular, occasional, rare, sparse, scarce...

dufrenoysits的音标：dufrenoysits的英式发音音标为：[d'ju:frɪnɔɪsɪts]dufrenoysits的美式发音音标为：[d'jufrɪnɔɪsɪts]...

fret的近义词有：worry, brood, care, fret。下面这些动词均有"烦恼，担忧"的含义：worry：普通用词，着重使人焦虑、烦恼或深深不安。 brood语气比worry强，多指沉思、沮丧或忧郁。care：多指极强烈的关心和忧虑。常带纯客观的意味。fret：通常指因悲哀、焦虑或忧愁等所困扰的心理状态。 ...

infrequent的音标：infrequent的英式发音音标为：[ɪn'fri:kwənt]infrequent的美式发音音标为：[ɪn'frikwənt]...

free的近义词有：free, liberate, release, discharge。下面这些动词均含"解放，释放"的含义：free：指不再受任何限制、约束、阻碍和压迫，完全可按自己的意志行事。liberate：常指从束缚和压迫中解放出来，强调获得最终的解放，有时可和free换用。release：侧重指放松限制、解除监禁或免除义务。discharge：强调把某人或某物从监禁、束缚中释放出来。...

freeze的音标：freeze的英式发音音标为：[fri:z]freeze的美式发音音标为：[friz]...

The walls need freshening up with white paint.墙壁需要用白漆刷新。In spring the yard has a freshening aspect.春天,院子里呈现出一派清新的景象.The wind is freshening up.风力正在加强....

All the journalists were given a freebie lunch.所有的新闻记者都享受到一份免费的午餐.Billy : Sure have. I picked up a freebie from the diner.比利: 有, 我从餐厅拿了份免费的.Awareness of freebie promotions when choosing which unit to train.增加了免费升级单位的单位选择...