Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test
監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波
失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字
濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。
The follicle cells taked part in the synthesis of yolk precursor, and the yolk precursor were transported into oocyte by pinocytosis and fusion. after follicle cells secreting egg shells, oogenesis completed
在幫助卵母細胞沉積完卵黃后，
濾泡細胞還分泌卵殼蛋白，形成卵殼之後退化消
失
Iir filters are a kind of digital filters with recursive structure and are primarily used for high data throughput applications that can tolerance phase distortion and require a sharp cut - off characteristic
本文討論的iir
濾波器是一種遞歸結構的數字
濾波器，主要用於能夠容忍相位
失真而要求具有良好的衰減特性的高數據處理量的系統中。
Tighten up fluid loss if necessary with additions of drispac r / sl. excess lime should equal pf with pm 6 times greater. if shales prover non - reactive, allow lime content to deplete
如果需要用高粘或低粘錐斯派克控制
失水的話，過量的石灰就應當使鉆井液堿度比
濾液堿度大6倍左右。如果證實頁巖沒有反應，就允許把鉆井液中所含的石灰耗盡。
2. based on studying canny operator and log operator, we take wavelet edge detection in allusion to smoothing image extremely and losing weak edge existed in gaussian filter
（ 2 ）在分析canny邊緣檢測演算法和log邊緣檢測演算法的基礎上，針對高斯
濾波器存在過度光滑圖像和丟
失緩變邊緣的問題，採用基於小波變換的邊緣檢測演算法。
The gold recovery machine mainly according to electroplate cathode to adsorb principle, filter inside with the precious metal recovery that the french patent design, it will need the valid metals resolution in the recovery liquid to come out, attain thus to the precious metal material of the recovery make use of, let up to electroplate to discard precious metal in liquid to run off, and lower the purpose of the production cost
金回收機主要是根據電鍍陰極吸附原理，再用法國專利設計的貴金屬回收
濾芯，將待回收液中的有效金屬解析出來，從而達到對貴金屬物質的回收利用的作用，減小電鍍廢液中貴金屬的流
失，以及降低生產成本的目的。
The lab study and field application indicate that this system has the feature of powerful repress, highly blind in, better rheology, better quality of mud cake and low filtration, resolved the complication of fall down and shrinking drilling in salt of gypsum layers, decreased the drilling circle, cut down the drilling cost and raised the colligation economic effect
室內研究和現場應用表明，該體系具有強抑制、強封堵、流變性好、泥餅質量好、
濾失量小的特點，解決了膏鹽層、鹽巖層的縮徑、垮塌，縮短了鉆井周期，降低了鉆井成本，提高了綜合經濟效益。
Instantaneous filtration, spurt loss
瞬時
濾失
Instantaneous filtration spurt loss
瞬時
濾失
The study results indicated that, arranged in the order of magnitude, the degrees of the effects on the cementing strengths of the two interfaces were the system, emulsion, main emulsifier, fluid loss control agent and white oil respectively ; the cementing strength would be doubled and redoubled after being cleaned by preflush, especially by the system, emulsion and fluid loss control agent ; and, along with the increase in the mix slurry ratio, the initial and final set times of slurry would be obviously lengthened and the compressive strength of bond cement would be remarkably reduced or the slurry wouldn ' t be even set
研究表明：對兩界面膠結強度的影響由大到小依次是體系、乳狀液、主乳化劑、降
濾失劑、白油；前置液清洗后，膠結強度成倍提高，尤其對體系、乳狀液和降
濾失劑清洗效果最佳；隨混漿比的增大，水泥漿初凝和終凝時間明顯延長，水泥石抗壓強度明顯下降，甚至不凝。
Based on estimating the type of filtration by constructed g and fraction, and determining the fracture closed point, the parameters such as the geometry of fracture, the leak - off coefficient can be calculated, and furthermore it can direct the acid fracturing design and improve the acid fracturing technology
通過構造g函數、函數可判斷儲層的
濾失特性，確定裂縫閉合點從而得到裂縫的幾何尺寸以及
濾失系數等參數，進而指導酸壓的施工設計和完善酸壓工藝。
It has less effect on the filter loss in increasing viscosity and shear, thus meeting the demands of fast and safe drilling relatively well. 1
在提粘、提切的情況下，對
濾失量影響較少，能較好地滿足快速安全鉆井的要求。
Two dimensional numerical simulation of fracturing fluid leakoff
壓裂液
濾失的二維數值模擬
A weighted, non - dispersed, inhibited freshwater low - lime / pac system will be used for this section
該井段將採用不加重、不分散、控制
濾失、低石灰pac鉆井液。
The leak - off mechanism in the course of acid fracturing is analyzed, the various common methods controlling acidizing fluid leak elf are put forward from such two aspects as acidizing fluid system and acid fracturing technology, acidizing fluid leak - off has considerable influrnec on the results of acid fracturing design, the acidizing fluid flotation model is still an important composite pact in acid fracturing design, hut the model of accurately calculating aciding fluid leak off is still in the midst of uninterrupted perfection, usually the ordinary model of fracturing fluid is used in the acid fracturing design, the domestic and overseas sell data steely about the model of calculating aciding fluid leak - off is introduced
摘要分析了酸壓過程中酸液的
濾失機理，從酸液體系和酸壓工藝兩個方面提出了各種常用的控制酸液
濾失的方法；酸液
濾失對酸壓設計結果影響較大，酸液
濾失模型是酸壓設計中的重要組成部分，但準確的計算酸液
濾失的模型仍在不斷的完善之中，通常仍將一般的壓裂液
濾失模型用於酸壓設計，介紹了國內外學者關于酸液
濾失模型的研究。
Polymer filtration control agent
聚合物降
濾失水劑
Constant filtration rate
恆定濾失速率
