drift n. 1.漂亮;(潮流的)推進力。 2.漂流物;吹積物;堆積物;【地質(zhì)學;地理學】冰磧,漂礫。 3.傾向,趨勢;動向。 4.大意,要點,要旨。 5.(政策等的)坐觀,放任自流。 6.流速;(船等的)流程,漂流距離;(滑車的)伸展距離。 7.(儀表的)漂移;偏移;【海,空】偏航,偏流;(飛彈的)航差;【無線電】偏移;偏差。 8.【礦物】水平巷道;小平道。 9.〔南非〕淺灘,灘。 10.【機械工程】沖頭,沖孔器;打樁器。 11.〔方言〕(鳥等)群。 against the drift of a current 頂著潮流的壓力。 be in a state of drift 心不自主,放任自流。 D- is as bad as unthrift. 放任自流和浪費一樣壞。 a policy of drift 放任主義[政策]。 a drift of snow [leaves] 吹積成的雪[樹葉]堆。 the amount of drift (船的)漂流距離。 a drift toward nationalism 民族主義的傾向。 the drift of an argument 爭論的要點。 catch the drift of a talk 抓住談話的要點。 a drift of ice 流冰。 a drift of sheep 羊群。 the drift of Nature 造化的威力。 electronic drift 電子(儀器)的漂移。 vt. 1.使漂流;使漂積[沖積];把…吹積;(吹積物等)覆蓋。 2.【機械工程】(用沖頭)沖孔。 The current drift-ed the boat to sea. 水流把船沖到海里去了。 a trail drift-ed with leaves 滿是落葉的小道。 The wind drifted the snow. 風把雪吹成小堆。 vi. 1.漂,漂流;漂移;游蕩。 2.被吹積成堆。 3.心不由主地走;不知不覺地陷入 (into) 漸漸趨向 (toward)。 perfume drifting into the room 飄進屋里的香氣。 drift toward ruin 逐漸走向毀滅[破產(chǎn)]。 He drifted from town to town. 他在各個城市流浪。 drifting sand 吹積成的沙堆。 drift apart from sb. 逐漸疏遠某人。 drift off to sleep 慢慢地睡著了。 drift down the river 順流而下。 drift (along) (through life) 隨波逐流地過一輩子。 drift into (errors) 不自覺地犯了錯誤。 let things drift 聽天由命。
zero n. (pl. zeros, zeroes) 1.【數(shù)學】零;零號。 2.零位;零點,起點;(溫度表的)零度,冰點;座標原點;無。 3.最低點;【天文學】天底;【航空】零高度。 4.沒價值的人[物]。 5.【軍事】= zero hour. the absolute zero 【物理學】絕對零度〔-273.16℃〕。 the air zero 原子彈空中爆炸中心。 fly at zero 超低空(1000英尺高度以下的)飛行。 vt. 1.把(調(diào)節(jié)器等)調(diào)整到零位。 2.把…減少到零位。 zero in 1. 調(diào)整(槍炮的)射距,把(槍炮等的標尺)調(diào)整到標準無風部位瞄準。 2. 把(火力)對準目標 (on)。 zero out 給…以免稅待遇(to zero out funding for public broadcasting 對用于公共廣播的經(jīng)費實行免稅)。 adj. 1.零(度)的。 2.【氣象學】云幕低于50英尺,能見度小于165英尺的。
zero-zero n. ,adj. (1)【氣、空】云幕和能見度極低(的)。 (2) 雙零方案〔指從某一有爭議地區(qū)全部撤走雙方核力量等的方案〕。 2.vt. 把…減到零;把…調(diào)整到零位。
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例句與用法
Correction of zero drift 零漂改正
Loading zero drift -負載零點漂移
Thermal zero drift 熱零點漂移
In the first part of the paper , general principles of computer data collection system is explicitly introduced , the ways of enhancing measuring precision on system which include the confirmation of time sampling , the choice of a / d converter and automatic control of measurement range are studied . with the way of software filtering , random errors are eliminated ; with the ways of software and hardware , the problems of checking the non - linear state on channels and zero drift 本文首先介紹了計算機數(shù)據(jù)采集系統(tǒng)的一般原理,研究了提高系統(tǒng)測量精度的方法,包括采樣時間的確定, a d轉(zhuǎn)換器的選擇和量程的自動控制;以軟件濾波的方法消除隨機誤差和奇異點;用軟件和硬件方法解決檢測通道非線形化和零點漂移的問題。
Thirdly , in the environment of labview , several kinds of vis used for sensor signal test are designed , including wave generation , time domain measurement , filter disposal , frequency analysis , etc . after that , wavelet analysis in the application of one - dimensional signal de - noise is studied , threshold and translation invariance wavelet de - noise are realized , and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview 接著,在labview環(huán)境下開發(fā)了多種用于傳感器信號測試的虛擬儀器,具有波形發(fā)生、時域測量、濾波處理、頻譜分析等多種功能。隨后,研究了小波分析在一維信號消噪中的應(yīng)用,實現(xiàn)了labview環(huán)境下的閾值法和平移不變量法小波消噪,并利用labview設(shè)計了飛控系統(tǒng)中光纖陀螺零漂信號的小波消噪儀。
Since it has the advantage of no moving components , impulse signal output , strong medium adaptability , high measurement accuracy , wide measurement range , low - pressure drop , no zero drift and easy to maintenance , it is wide accepted that the vortex type fluid oscillatory flowmeter is ideal flowmeter in the measurement of gas , liquid , steam and mix / corrosive fluid 這類的流量計兼有無運動部件,脈沖數(shù)字輸出,計量不受被測流體性質(zhì)影響,測量準確度較高,量程比寬,無零點漂移,壓力損失小,便于安裝維護等優(yōu)點,是測量氣體,液體,蒸汽,混合型和腐蝕性流體的理想的流量計。
To approach practical system , some unit model is built by practical test . and to make pid parameters adjustment easily , what influence will happen when pid parameters is changed is studied in this dissertation . to avoid serious influence of nonlinear zero drift , an integral value processing method is proposed and applied in the practical implement of the system 在系統(tǒng)數(shù)學建模的過程中,采用了實驗法對部分控制單元的實際特性進行了測試分析得到其數(shù)學模型,因此本系統(tǒng)的數(shù)學模型更能準確的反映實際跟蹤控制系統(tǒng)的動態(tài)本質(zhì),從而為實際系統(tǒng)的研制提供了合理的理論基礎(chǔ)。
In general , a precise resistor is in series with one of the resistors in wheatstone bridge to compensate the zero offset , and the other one is in parallel with another arm of the wheatstone bridge to compensate thermal zero drift . based on this principle , in this paper , a compensation method based on virtual instrument technology has been put forward . actuated by current source , a good calculation method of compensation resistors and their position in the bridge is deduced 本文基于串并聯(lián)電阻補償法的原理,提出了一種基于虛擬儀器的誤差補償方案,推導了在恒流源供電下可以精確的計算出補償電阻大小和補償位置的算法,并且在虛擬儀器軟件平臺labview上完成了數(shù)據(jù)采集、處理、顯示等軟件的設(shè)計,經(jīng)過實驗的驗證,對傳感器的零點溫度漂移補償取得較好的效果,而對靈敏度溫度漂移的工藝補償亦有一定的效果。