ladder n. 1.梯子。 2.梯状物;〔比喻〕(进身的)阶梯,成功的手段。 3.〔英国〕(袜子抽丝而形成的)梯形裂缝(= ladder-like hole)。 a Jack ladder 【造船】木踏板绳梯。 a scaling ladder 云梯。 climb a rung of the social ladder 社会地位增高。 ladder of success 发迹的阶梯。 climb up the ladder 往上爬,官运亨通。 get one's foot on the ladder 开始,着手。 get up [mount] a ladder 1. 上梯。 2. 〔俚语〕被处绞刑,被吊死。 He who would climb the ladder must begin at the bottom. 〔谚语〕千里之行始于足下。 Jacob's ladder 1. 【圣经】天梯。 2. 〔口语〕陡梯。 3. 【航海】绳梯,软梯。 4. 从乌云中照射出来的一道太阳光。 5. 【植物;植物学】花葱。 kick away [down, over] the ladder by which one rose 过河拆桥。 see through a ladder 看出显而易见的东西。 vi. 1.〔英国〕(袜子)抽丝。 2.成名,走红。 ladder to the top of one's profession 爬到本行业的最高峰。 vt. 1.用梯子爬(墙等)。 2.在…架设梯子。 3.使(袜子)发生抽丝现象。 ladder a wall 用梯子爬墙。 ladder a water tower 在水塔上架梯子。 adj. -less ,-like adj.
Flowing type : flowing type, double-current type, u type flowing type, ladder type only 流型:单流型双流型u型流型阶梯型
Hole ladder type 带孔梯式
ladder type 1a has a duty rating of extra heavy industrial for 300 pounds or 136.2 kilograms 型号为1a的梯子的承重量适应于大约300磅或1362公斤的特殊重量的工人。
6 . the forming regularity of oil & gas reservoir of neogene in shallow ocean regions which are less explored in qikou depression are studied and are summaried into two models : one term + episodic type and ladder type 6、对歧口凹陷低勘探程度区极浅海区上第三系油气藏成藏规律进行研究,并将其归结为一期成藏+幕式成藏和阶梯式成藏两种模式。
This machine combines advantages of machines from home and abroad with good airproofing performance, agile turning, filtering bag can be convenient to be changed, dust removing efficiency is more than 99 5, dust discharging density is lower than national standard . filtering bag adopts ladder type flat bag structure which has simple structure, close collocation, high filtering area index, large back-blow swing and dust can be easily shaken off 该机集国内外同类产品优点于一体,密封性好回转灵活,更换滤袋方便,除尘效率大于995,粉尘排放浓度低于国家标准滤袋采用梯形扁袋结构,结构简单,排列紧凑,过滤面积指标高,反吹振幅大,易于抖落积尘