高低機轉把 的英文怎麼說
中文拼音 [gāodījīzhuǎnbǎ]
高低機轉把
英文
elevating handle-
The market timing ability of mutual fund managers can be defined as the ability to anticipate whether the general stock market is going to rise or fall and to adjust the composition of their portfolios accordingly. that is, if the managers think they have the ability to anticipate that the market is going to rise, they shift the composition of their portfolios they manage from less to more volatile securities. if they think the market is going to fall, they shift into the opposite direction
證券投資基金（以下簡稱「基金」 ）的擇時能力是指基金經理的市場時機把握能力，即如果基金經理相信自己能夠準確預測市場趨勢，他將根據期望的市場走勢調整其投資組合的風險水平，在預測市場收益上升時增加組合的風險水平，下降時降低組合的風險水平，通過高風險資產和低風險（或無風險）資產之間的不斷轉換來獲取超額收益。The timing - and - quantitation precision injection of lpg was realized with high - speed lpg solenoid valve and a set of electronic control system, which was designed by the author and can flexibly control the gas supply system of lpg. based on the analysis of experimental data got by comparing the performances before and after the application of the set of equipment on lr6105q12 diesel engine, the effects of load, speed and replace ratio, etc on the emissions of smoke, hc and co of dual fuel engine were expounded. through optimization, the smoke emission was utmostly reduced and the emissions of hc and co were within the government restriction
為此，本文通過對各個方案進行詳細比較，選擇了電控多點順序噴射的供氣方案；利用高速lpg噴射閥和自己獨立開發出一套電子控制系統對lpg供氣進行靈活地控制，實現了lpg的定時定量噴射，並把這套裝置應用到中國一拖生產的lr6105q12柴油機上，在對改裝前後的發動機進行大量試驗和分析的基礎上，闡明了負荷、轉速、摻燒比等因素對雙燃料發動機的煙度、 hc 、 co等排放的影響情況，並且通過優化，最大限度地降低了發動機的煙度排放，同時使hc 、 co排放限制在國家標準規定的范圍之內。It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時，應選用轉矩按轉速平方降低特性的電動機；調速泵的運行經濟性受到管路阻力特性曲線的限制，其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制；在母管制系統中把部分定速泵改為調速泵時，應將性能較高的定速泵改為調速泵。The mapping the pilot training from the lower dimension space to high dimension space, and in the high dimension space, the wave - let kernel function is adopted, according to recursion least square criteria, the lower linear inseparable problem is convert to the separable problem
然後將根據結構風險遞歸二乘最小化準則回歸估計支持向量機原理，把導頻訓練序列映射到高維空間，並在高維空間採用結構小波核函數，達到了將低維空間的非線性估計轉化為高維空間的線性估計的目的。So extend kalman filter ( ekf ) is applied to low speed control of ac servo systems in order to identify the information of position of magnet poles and low speed instead of incremental encoder. in high speed region, encoder is still used to acquire speed information
基於此，本文把擴展的卡爾曼濾波（ ekf ）技術應用於交流伺服系統的低速控制，完成系統初始磁極位置角的辨識以及低速下電機轉速的估計，在高速時，仍採用光電編碼器獲取電機轉速。There are concrete relationship between the population pressure and the transfer of agricultural surplus labor, and in different region the population pressure is different. the rural region is the agricultural population ' s concentrated region, so in this paper, we use some mathematic analysis to calculate the population pressure in the rural region of fujian province, based on the result, we divided the rural region of fujian province into four groups : the lower pressure region ; the midst pressure region ; the high pressure region and the highest pressure region. then choose a county in the high pressure region - - - - - - yunxiao county to study the transfer of agricultural surplus labor, then analysis the affection in the transfer and the obstructive factor, and put forward some suggestion to solve the transfer in the county
本論文利用ahp決策分析等數量分析方法對福建省鄉村地區人口壓力進行定量評估分級，把全省鄉村地區按人口壓力大小分為四個等級：低壓力區、中等壓力區、高壓力區和最高壓力，然後就高壓力區的一個縣? ?雲霄縣對農業剩餘勞動力轉移進行研究，通過對樣本村的典型調查獲得該縣農業剩餘勞動力轉移的第一手資料，結合「五普」等資料對該縣的農業剩餘勞動力轉移現狀和特點進行較為微觀的分析研究，探討影響農業剩餘勞動力轉移的各種動力機制，並就農業剩餘勞動力轉移過程中存在的各種障礙因素進行分析，在此基礎上，對雲霄縣農業剩餘勞動力的提出幾點對策和建議。The massive walking - beam rose and fell above the deck ; at one end a piston - rod worked up and down ; and at the other was a connecting - rod which, in changing the rectilinear motion to a circular one, was directly connected with the shaft of the paddles
甲板上露出一根很長的蒸汽機杠桿，兩頭一高一低地不停活動，這根杠桿的一端聯接著活塞柄，另一頭聯著輪機上的曲軸，這樣就把杠桿的直線推動力轉變為直接推動輪機的動力，從而使輪軸不停地旋轉起來。分享友人