flat n. 1.〔英罕〕地板;(房屋的)一层。 2.一套房间;〔pl.〕分宅公寓〔美国高级公寓叫 apartment house〕。 3.(轮船的)平台,甲板。 -let 〔英国〕小套间。 adj. (flatter; flattest) 1.平的,平坦的,扁平的。 2.浅的。 3.伸平的,平展的。 4.(图画等)平板的;(颜色等)单调的,不鲜明的;【摄影】无深浅反差的。 5.意气消沉的,无精打采的,单调的,无聊的;〔美俚〕没有钱的,不名一文的。 6.(啤酒等)走了气的。 7.(市面)呆滞的,萧条的,不景气的;(价钱)无涨落的。 8.淡然的;直率的,直截了当的。 9.【音乐】降音的,降音号的。 10.【语言学】平舌的;浊音的,带声的 (opp. sharp) 【语法】无语尾变化的。 11.(风帆)绷紧的。 12.【军事】(弹道等)低平的。 crops flat after a storm 暴风雨后庄稼倒伏。 knock flat 把人打倒在地。 a flat price (各种商品)一样的价格。 a flat rate of 3% 一律百分之三。 feel flat 感觉无聊。 a flat lie 弥天大谎。 The market is flat. 市面萧条。 Prices are flat. 物价平平。 a flat denial 断然否认[拒绝]。 become flat 泄气。 lay a city flat 把城市夷为平地。 That's flat . 当然;绝对这样。 adv. 1.匍匐地,平直地。 2.完全地;断然地,干脆地,直截了当地。 3.恰恰,正好。 4.【金融】无(利)息地。 tell sb. flat 明白地告诉某人。 flat and plain 简单明了,直截了当。 ten dollars flat 拾元整。 flat aback 吓了一跳。 the bond are sold flat 公债无息出售。 be flat broke 完全破产。 fall flat 跌倒;完全失败;全无效果,全无好评 (fall flat on the audience 毫不动人)。 n. 1.平面;平面图;坪,平地;浅滩,低湿平地。 2.平坦部分;扁平的东西;平底船;平底篮。 3.〔俚语〕(容易受骗的)傻子,蠢汉;泄气轮胎。 4.【音乐】降半音,降音号[b] 【建筑】平顶;【机械工程】台面;【戏剧】背景屏。 (draw) from the flat 按照图样(描摹) (opp. from the round 按照实物)。 in the flat 在纸上;平面图的 (opp. in the round, in relief)。 join the flats 使(故事等)首尾呼应;装出始终如一的样子。 on the flat = in the flat. vt. (-tt-) 1.使平;使降音。 2.使(图画等)平淡。 3.〔美国〕丢弃(恋人)。 vi. 1.变平,变平淡。 2.【音乐】降音。 flat out 〔美国〕渐薄;打错主意,终无结果,虎头蛇尾。
The mixture is subsequently passed through a flat membrane filter . 接着让混合物通过一个平板膜滤器。
Scribble membrane machine adopts flat membrane pushing out method to produce various compound cloths 涂膜机采用平膜挤出法生产各种复合布。
When coagulant bath temperature was at 15 c, the flat membrane was smooth, and the defects disappeared 温度为15时,所刮膜平整光滑,缺陷消失。
If coagulant bath temperature was too high, flat membranes would have presented themselves with all kinds of defects 凝固浴温度对填充聚合物平板膜有很大影响。温度过高时,所得平板膜易出现多种缺陷。
The studies on stability of pu-sio2, pes-sio2 suspensions and influence coagulant bath temperature on flat membrane were carried out 研究了无机粒子填充聚合物悬浮铸膜液的稳定性及凝固浴温度对平板膜成形的影响。
The wire drawing process adopts the flat membrane pushing out method to produce and weave wire, this machine is controlled by frequency conversion, feed in raw material automatically, and change the network automatically 一拉丝工序采用平膜挤出法生产编织丝,该机由变频控制,自动加料自动换网。
The extraction techniques are generalized under three categories : the supported liquid membrane extraction ( slme ) and microporous membrane liquid-liquid extraction ( mmlle ) based on flat membrane and the liquid phase microextraction ( hflpme ) based on hollow fiber membrane 其应用概括起来分为以下3类:以扁平膜为基础的支撑液膜萃取(slme)和微孔膜液液萃取(mmlle),以中空纤维膜为基础的液相微萃取(hflpme)。
In this paper, the structure and properties of polyurethane ( pu )-sio2, polyethersulfone ( pes )-sio2 composite membrane . including composite flat membrane and composite hollow fiber membrane, and responsivity of composite pu hollow fiber membrane pore size to pressure were studied 本文对sio_2填充聚氨酯(pu)、聚醚砜(pes)复合膜,包括平板膜和中空纤维膜的结构和性能及pu复合中空纤维膜的压力响应性进行了研究。
The dual-bath coagulation method suggested by j . a . va n't hof could be used in membranes with high selectivity clearance rate of low-molecular weight substances and moderate water flux theoretically . therefore it may be applied in the field of hemofiltration . to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual-bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1 为了改善和优化聚醚砜超滤膜(单浴法)在血液过滤实际应用中的性能,本论文以j.a.van'thof等提出的双凝固浴法为基础,以聚醚砜(pes)为主要成膜材料,以二甲基亚砜为溶剂,并添加一定分子量的致孔剂(pvp,聚乙烯吡咯烷酮)以及一定分子量的添加剂(peg,聚乙二醇)按照一定配比在一定温度下制成透明均一的铸膜液,静置脱泡后在一定的工艺条件下制成聚醚砜平板膜和中空纤维膜,然后通过测试膜的结构和性能来评估其用于血液过滤中的前景。
The results indicate the even blended, clear suspensions owned a good stability and flowability, and can used as casting membrane solutions . both the stability of active carbon power suspensions and the integration properties of membrane being made from them were bad . coagulant bath temperature had a strong influence on pu, pes composite flat membrane 结果表明,经过充分分散的sio_2填充聚合物铸膜液,均匀透明,具有较好的稳定性和流动性,适于用作平板膜和中空纤维膜的原料液;而活性炭粉填充聚合物铸膜液稳定性较差,所得膜的综合性能也差于sio_2填充膜。