fir：[英 [fɜ:(r)] 美 [fə:] ]
fir是什么意思
复数形式：firs;
fir 基本解释名词冷杉; [植]枞木
abbr.food-irradiation reactor 食物辐射（杀菌）用反应堆; firkin 弗京
fir
fir 相关例句名词
1. fir
1. A fir is an evergreen tree with needlelike leaves that grows especially in cold areas.
冷杉是一种针叶常绿树，尤在寒冷地区生长。
fir 网络解释1. 冷杉：与加拿大TOLKO公司长期合作,量大价优!欢迎各界人士前来洽谈!可按照规格定尺加工,有自主进出口权!也欢迎有意向的代理商前来洽谈代理事宜,条件优厚!我司现阶段主营产品为加拿大SPF(云杉(Spruce)松木( Pine)冷杉(Fir))
2. fir什么意思
2. 数字滤波器：数字滤波器是数字信号处理中的重要组成部分.数字滤波器分为有限脉冲响应数字滤波器(FIR)和无限脉冲响应数字滤波器(IIR).介绍了利用窗函数设计FIR滤波器的方法,即根据给定的滤波器技术指标,确定有限长单位脉冲序列,
3. 枞：是美国大陆最清洁之州. 本州每年输出三百多万株圣诞树,数目在50州内列第一位. 蒙大拿州同时也是美国五州不课征消费税(No Sales Tax)其中的一州,所以在本州您可享受各种的购物乐趣. 主要树种为松(Pine)及枞(Fir),木材产量丰富.
4. fir：far-infrared ray; 远红外
5. fir：fpfar infrared radiation; 远红外辐射
6. fir
6. fir：finite impulse response; 有限冲激响应
fir 双语例句1. The results showed that, with increasing of direct current, the crystal growth modes changed from typical fir-tree crystal to similar equiaxed crystal, and the current increasing further, the final crystal was prone to dendritic mode again and its structure was refine d.
结果表明：随着电流的增大，合金凝固过程中晶体的生长方式从典型的树枝晶转变为类似等轴晶，电流进一步增大时，最终又趋向于枝晶生长，并且组织得到细化。
2. Enterprise covers an area of 20, 000 square meters, more than 150 production workers, professional production of the suspect soil mixed template, years Tatsu productivity more than 12, 000 cubic meters, but also fir the use of local advantages, the development of high-grade blockboard, using imported quality wood ventral.
企业占地面积20000平方米，生产工人150余人，专业生产混疑土模板，年生产力达12000立方米以上，还利用当地的杉木优势，开发高档细木工板，采用进口优质木材腹面。
3. Sillett SC, Goslin MN (1999) Distribution of epiphytic macrolichens in relation to remnant trees in a multiple-age Douglas-fir forest.
哀牢山地区保存着较为丰富的附生地衣资源，这给利用附生地衣的分布变化监测当地森林环境的变化以评价森林管理水平等提供了很好的尺度。
4. fir什么意思
4. Here around the spruce, fir, Park grapefruit, pine, and widespread Porella Kiwi, Lindera, such as high-quality oak wood buildings.
这里遍布着云杉、冷杉、园柚、华山松、肆萼猕猴桃、钓樟、辽东栎等优质栋材。
5.
5. A Little Boy How I never could be tired with roaming about that huge mansion, with its vast empty rooms, with their worn-out hangings, fluttering tapestry, and carved oaken panels, with the gilding almost rubbed out---sometimes in the spacious old-fashioned gardens, which I had almost to myself, unless when now and then a solitary gardening man would cross me---and how the nectarines and peaches hung upon the walls, without my ever offering to pluck them, because they were forbidden fruit, unless now and then, ---and because I had more pleasure in strolling about among the old melancholy-looking yew-trees, or the firs, and picking up the red berries, and the fir-apples, which were good for nothing but to look at ---or in lying about upon the fresh grass, with all the fine garden smells around me---or basking in the orangery, till I could almost fancy myself ripening too along with the oranges and the limes in that grateful warmth-or in watching the dace that darted to and Fro in the fish-pond, at the bottom of the garden, with here and there a great sulky pike hanging midway down the water in silent state, as if it mocked at their impertinent friskiness, ---I had more pleasure in these busy-idle diversions than in all the sweet flavors of peaches, nectarines, oranges, and such like common baits of children.
tapestry绣帷；挂毯 nectarine油桃 gilding镀金 pluck 采，摘，拔 fir-apples：枞树的一种圆锥形果实 dace鲦鱼 dart猛冲，飞奔 impertinent不切题的一个小男孩查尔斯·兰姆我在那所很大很大的宅院里满世界地跑，从来不知什么是疲倦：那里有许许多多又大又空的房间和破破烂烂的帷帐，墙上的幔子还随风飘动，橡木雕花嵌板上的金粉却已剥落了——我常常到那座古老的大花园里去玩，那花园简直叫我一个人独占了，偶尔才碰上一个孤零零的老园丁——那园子里，油桃和桃子垂在墙头上，我根本不去碰它，因为那是禁果，除非偶然一回两回——因为，我更高兴在那些带着忧郁神情的老水松树或者枞树之间跑来跑去，从地上捡那么几颗红浆果，几只枞果，而那些枞果只能看，不能吃——有时候，我随便躺在嫩草地上，让自己完全沉浸在满园子的芳香之中——要不然，我就在桔子园里晒太阳，晒得暖洋洋的，一边想象自己跟那些桔子、好些菩提树一同成熟起来——再不然，我就到花园深处，看那些鲦鱼在鱼池里穿梭般游来游去，不定在哪里还会发现一条很大的梭子鱼冷冷落落地停在深水之间，一动不动，好象对于那些小鱼们的轻狂样儿暗中表示鄙夷，——我喜欢的是诸如此类无事忙的消遣，而对于象桃子呀，油桃呀，桔子呀等等这些普通的小孩子们的诱饵，碰也不去碰它。
6. The main species are pine, spruce, fir, Cheng Chi, Euptelea, Cercidiphyllum, and so on.
主要品种有红松、云杉、冷杉、赤桦、领春木、连香树等。
7. As i love Jay Chou and FIR, most of this albums are theirs.
这些音乐专辑一般都是周杰伦和fir的，因为我很喜欢他们。
8. In the earlier work D. Husinga developed a Matlab computer program that traded adders for delays, optimized scaling and used Canonic Sign Digit techniques to reduce hardware requirements for fixedcoefficient FIR filters.
在先前的工作4 Husinga开发了基于Matlab的计算机程序交易加法器的延迟，优化调整和使用法服注册位数技术，以减少硬件要求fixedcoefficient FIR滤波器。
9. Fir or pine wood. boreal or alpine sandwort.
北方高山地区的一种石竹科植物。
10. fir
10. Finally, it implements the simulation of Digital Down Converte by using system view. The design of each simulation module is explained and the result of simulation is analyzed.
并在此基础上提出了一种最优数字信道的设计方案，优化设计CIC、HB、FIR滤波器来实现高效的抽取滤波和降低信号处理速度，最后使用System View仿真软件对最优数字信道设计方案进行仿真，并对仿真结果进行了分析。
11. A FIR passband filter with Hamming Window was designed and applied in the vibration monitoring system.
在数字信号处理中，FIR滤波器是常用的滤波系统。
12. Design steps: First, a section of speech signal acquisition and to observe its spectrum, and then the design of a Hamming window FIR filter, the final filtering of the signal.
设计步骤为：首先采集一段语音信号并观察其频谱，然后设计一个汉明窗FIR滤波器，最后对该信号进行滤波。
13.
13. Whirl your pointed pines, Slash your great pine On our rocks, Hurl your green over us, Cover us with your pools of fir.
搅起你尖顶的塔松，将你的大松树溅在我们的岩石上，将你的绿色投掷向我们，用你的松海淹没我们。
14. Got developing quickly on construction of industrialization of southern ormosia fir.
在南方红豆杉产业化建设上得到了迅速发展。
15.
15. The force that science and technology innovates -- resource of southern ormosia fir can last the protection, development, practice that use and exploration
科技创新的力量——南方红豆杉资源可持续保护、发展、利用的实践与探索- thesis-writing.cn，论文-报刊摘要
16. Based on linear equation constraints and steepest descent method, an adaptive algorithm is proposed for nonminimum phase FIR system identification.
摘要提出了一种基于线性代数方程组约束和梯度法的非最小相位FIR系统的自适应辨识算法。
17. Any of several similar or related trees, such as the Douglas fir.
枞木类似或相关树木中的任意一种，例如黄杉
18. fir
18. The Silver Fir of birth and the Yew of death are sisters.
代表生命的银枞和象徵死亡的紫杉是一对姊妹。
19. Her new book s how s her to be a fir s t-rate noveli s t.
她的新书表明她是第一流的小说家。
20. fir什么意思
20. Optimal design example of 2-D FIR circularly-symmetric linear-phase lowpass filters are given, and the results show that the ripple in passband and stopband is much small, and the PNNA-based method is of strong stability and requires considerably little amount of computations.
给出了二维FIR圆对称线性相位低通数字滤波器优化设计实例。计算机仿真结果表明由该方法设计的二维数字滤波器，通带和队带范围波动小，所需计算量非常少，稳定性强。
fir 词典解释1. 冷杉;枞
A fir or a fir tree is a tall evergreen tree that has thin needle-like leaves.
fir 单语例句1. The " king fir " has become a symbol of Xishui and has been designated by many forestry experts as a rare tree.
2. The junks are made mainly of camphor, pine and fir timber and assembled through use of traditional carpenters'tools.
3. They are mainly made in ordinary wood, for example China fir and camphorwood.
4. Locals blamed a mass influx of visitors for the deteriorating situation of their treasured king fir.
5. The rolling mountains were much greener, with forests of fir and pine.
6. In 1510, children first decorated a fir tree in the city's town square.
fir 英英释义fir的近义词
noun
1. any of various evergreen trees of the genus Abies
chiefly of upland areas
Synonym: fir treetrue fir
2. nonresinous wood of a fir tree