block n. 1.片,塊,大塊;粗料,毛料;木料;石料;金屬塊;【建筑】塊料,砌塊;【地質(zhì)學(xué);地理學(xué)】地塊。 2.俎,砧板,(切肉等的)墩,臺(tái);斷頭臺(tái);騎馬臺(tái)(等);【印刷】(插圖)襯版,版墊;(印花)模板;剪裁樣板;(裝訂)鋼模;帽模,帽楦;【造船】船臺(tái);煞車;【計(jì)算機(jī)】部件。 3.滑車,轆獸,滑輪組。 4.一組,一套,一批;黏貼的帳;大宗股票。 5.一排大建筑;〔英國(guó)〕大樓,大廈;〔美國(guó)〕街區(qū)〔四條街當(dāng)中的地區(qū)〕街段,地段;區(qū),區(qū)組。 6.(鐵路)區(qū)段,區(qū)截;(戲院)座位區(qū);(政府分配移民等的)劃區(qū);〔澳大利亞〕 〔the block〕 熱鬧街道,鬧市,繁華的大馬路。 7.(櫥窗陳列帽、假發(fā)等用的)木制假頭;〔美口〕頭;掛表;名譽(yù)不好的人;木頭人,笨漢;鐵石心腸的人。 8.障礙,阻礙;【無(wú)線電】停振;【醫(yī)學(xué)】阻滯;〔英國(guó)〕(交通的)堵斷;(對(duì)議案的)反對(duì)聲明;【體育】(合法)阻擋;【棒球】障礙球。 9.集團(tuán) (= bloc)。 concrete blocks 水泥板。 paving blocks 鋪路石板。 a block of stone 石料。 building block [blocks] 【建筑】砌塊〔兒童玩的積木〕。 a hat block 帽楦。 a single [double] block 單〔復(fù)〕滑車。 traffic block 交通堵塞。 a large block of tickets 一大迭戲票。 He has a block when it comes to math. 一碰上數(shù)學(xué),他的腦子就木了。 an input [output] block 【計(jì)算機(jī)】輸入〔輸出〕部件。 a swage block 【機(jī)械工程】型砧。 gauge block 【機(jī)械工程】塊規(guī)。 screw block 千斤頂。 as like as two blocks 像極了的。 cut blocks with a razor 剃刀砍木頭,用非其當(dāng)。 go [be sent, be brought] to the block (被送)上斷頭臺(tái);被提出拍賣。 in [the] block 成批,成套。 knock sb.'s block off 給某人吃苦頭,痛揍某人。 on the block 拿出拍賣;〔澳大利亞〕逛鬧市。 to do the block 散步,逛馬路。 vt. 1.妨礙,阻撓;堵塞,封鎖;凍結(jié)(資金等);杜絕;〔英國(guó)〕對(duì)(議案)事先作反對(duì)宣傳。 2.把…放置臺(tái)上;用木片等塞牢;使…成塊狀;用帽模打(帽樣);給(書籍)燙金;(球類運(yùn)動(dòng)中合法)阻擋。 3.【鐵路】以區(qū)截制管理(行車)。 4.【戲劇】排練(主要位置和動(dòng)作)。 5.畫出…的輪廓〔草圖〕。 block a hat 打帽樣。 blocked funds 被凍結(jié)資金。 two-way blocking positions 兩面阻擊陣地。 a blocking oscillator 【物理學(xué)】間歇振蕩器。 vi. 1.【戲劇】排練。 2.【體育】(合法)阻擋。 block in 1. 畫略圖;設(shè)計(jì)。 2. 堵塞。 block out 畫略圖;擬大綱,打草樣。 block up 堵塞,隔斷,封鎖;停用。 Blocked! 〔揭示〕禁止通行! 此路不通!
All of these improvements have been implemented . dct - based block image coding has always suffered due to block artifacts in the compressed image caused by individually processing blocks 可視電話中的視頻序列一般場(chǎng)景變更較少,背景大多數(shù)時(shí)是靜止的,目標(biāo)的運(yùn)動(dòng)量不太大。
The so - called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude , frequency , and phase , followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology . the result of amr can be used in the following processing blocks such as demodulation , supervision processing and anti - interference processing and so on 所謂調(diào)制類型自動(dòng)識(shí)別( amr )是根據(jù)接收信號(hào)樣本提取出振幅、頻率和相位的特征參數(shù),然后借助信號(hào)處理技術(shù)和計(jì)算機(jī)快速處理能力,采用合理算法進(jìn)行處理,從而實(shí)現(xiàn)對(duì)未知已調(diào)波調(diào)制類型的自動(dòng)識(shí)別,為后繼的解調(diào)、監(jiān)控、抗干擾等處理奠定基礎(chǔ)。
But digital videos compressed under dvcam format have obvious geometric distortion , compared with analog videos . in order to research this geometric distortion , we analyzed the influence of dct compression on image geometric information by matlab and visual c + + to , and found that more than one pixel distortion can be made under 4 : 1 compression ratio and 4x4 processing block 為進(jìn)一步研究這種畸變產(chǎn)生的原因,利用matlab的數(shù)字圖像處理工具包和visualc + +開(kāi)發(fā)的差影法程序?qū)ct壓縮給圖像像元位置信息帶來(lái)的影響進(jìn)行了實(shí)驗(yàn)和分析,發(fā)現(xiàn)在壓縮比為4的情況下,有明顯的1個(gè)像元以上的幾何畸變。
The lna is one of the most important and broad components in microwave communication system receiver , and is used to amplify the low level signal . as the first signal processing block after the antenna , the lna determines the noise figure and input voltage swr and greatly impacts the dynamic range 低噪聲放大器( lna )廣泛應(yīng)用于微波接收系統(tǒng)中,是重要器件之一,主要用來(lái)放大低電平信號(hào),由于是自天線下來(lái)第一個(gè)進(jìn)行信號(hào)處理的器件, lna決定了整個(gè)系統(tǒng)的噪聲性能和電壓駐波比vswr ,并對(duì)動(dòng)態(tài)范圍有著較大的影響。
As a mix - mode chip , the application - specific controller including analog signal and digital signal processing block can be applied to receiving , amplifying , processing , controlling signals of pir , and offer a wide application in some fields . in analog circuits , by sub - threshold mosfet , a self - bias current source is presented , which has a high power supply restrain ratio and a complementary to absolute temperature characters 這款芯片是一款數(shù)模混合芯片,包括模擬信號(hào)處理(含模數(shù)接口模塊)和數(shù)字信號(hào)處理兩大模塊,完整實(shí)現(xiàn)對(duì)紅外信號(hào)的接收、放大、處理、控制,產(chǎn)生有效數(shù)字電平驅(qū)動(dòng)繼電器、可控硅等負(fù)載,應(yīng)用于自動(dòng)燈等多種場(chǎng)合。
The diversity of ceramics , crystals , plastics and composite materials that we can create or transform may seem vast , but there are strong common threads that shape our core competencies : common processing blocks in shaping technologies , products with resistance to extreme thermal , mechanical and chemical environments and multi - functionality 我們制造加工的陶瓷、晶體、塑料和復(fù)合材料看似千變?nèi)f化,實(shí)際上我們的核心能力是一致統(tǒng)一的:共同的成型加工工藝、生產(chǎn)的都是耐高溫、耐機(jī)械磨損、耐化學(xué)腐蝕的多功能產(chǎn)品。