梯形環 的英文怎麼說
中文拼音 [tīxínghuán]
梯形環
英文
keystone ring-
Carbocyclic ladder polymer
碳環梯形聚合物Internal combustion engines - piston rings - keystone rings
內燃機.活塞環.梯形環Biogas in commercial size existed in sedimentary basin which has high deposition velocity and low geothermal gradient and shale, coalbed or compacted sandstone in unconventional environments
商業規模的生物氣存在於具有高沉積速率、低地溫梯度的沉積盆地中和非常規環境下形成的頁巖、煤層或緻密砂巖中。Ecocline a cline that is due to a specific environmental factor, such as a gradient of heavy metal concentration in the soil
生態漸變群：由物種生存特定環境因素影響而形成的一種漸變群，例如土壤中的重金屬濃度梯度。We have extended our research on rocky desertification, provided solid theoretical and technical basis for the control of rocky descrtification and established successful rehabilitation model with chinese characteristics such as integrated control of small drainage area, returning cultivated land to forestry and grass, production of both animal and grass, changing slope to terrance in order to prevent water loss and soil erosion, aiding the poor byway of environmental immigration and development and improving representative fragility ecology, etc
貴州對喀斯特石漠化生態環境進行了長期、持久的研究，為石漠化治理提供了堅實的理論基礎和有力的技術支撐，形成了具有中國特色的成功治理模式：包括小流域綜合治理模式，生態農業模式，退耕還林還草、林草結合的草、畜（禽）生產模式，草地畜教業模式，坡耕地防治水土流失的坡改梯模式，環境移民與開發式扶貧模式，典型脆弱生態環境綜合治理模式等。Xanthophyli cycle has been widely concerned since the finding that it has the function in heat dissipation. with the trans - thylakoid ph gradient, zeaxanthin ( z ) together with antheraxanthin ( a ) can absorb excess energy from chlorophyll and release it as heat, thus protect the photosynthetic apparatus from photodamage by high light. violaxathin de - epoxidase ( vde ) is the key enzyme in xanthophylls cycle
目前普遍認為葉黃素循環的色素定位於天線色素蛋白復合體上，在跨膜質子梯度（ ph ）形成后，玉米黃質（ z ）和環氧玉米黃質（ a ）能夠從葉綠素中吸收過多的激發能，並以熱能的形式耗散到體外，從而保護光合器官免受強光的破壞。Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task
文摘:本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12Endless v belts - geometrical characteristics
汽車製造用梯形環形皮帶.幾何特性The distributed plc system of the floodgate ' s opening measuring presented by the paper has many advantages such as high reliable operation, high measuring precision, having the network communication function, convenient installation and correction, etc. this thesis further studies the key device for the floodgate ' s opening measuring, the rotary encoder, selects the absolute rotary encoder adopting the binary cyclic code, studies the method for transforming the cyclic code to the binary data and according to the transforming formula designs the ladder diagram program
本論文研製的分散式plc閘門開度測量系統具有工作可靠、測量精度高、具有聯網通信功能、安裝和校正方便等特點。本論文深入研究了閘門開度檢測的關鍵器件? ?旋轉編碼器，選用了採用二進制循環碼編碼的絕對式旋轉編碼器，研究了將二進制循環碼轉換為二進制數的方法，根據轉換公式設計了plc的梯形圖轉換程序。Internal combustion engines - piston rings - half keystone rings
內燃機活塞環.單面梯形活塞氣環To guarantee the validity and speediness insimulation, the back - emf is generated using piecewise linear curves. in the double loop of control system, a pi controller is adopted in the speed loop and a hysteresis current controller is adopted in the current loop
為保證模擬快速性和有效性，模型採用分段線性法生成梯形波反電動勢，系統採用雙閉環控制:速度環採用pi控制，電流環採用滯環電流控制。The materials - air circulation is existed in the ginding chamber of hammer mill when grinding materials. it led to lower production, higher consumption of energy and particle inhomogeity. aiming at materials - air circulation, the special type grinding chamber that is made up of trapezium screen was proposed
針對錘片式粉碎機工作時粉碎室內存在物料-空氣環流層，導致其粉碎效率低、能耗高，且粉碎物粒度不均勻，提出使用梯形篩片構成的異型粉碎室來改善錘片式粉碎機的性能。The ladder - shaped rollers and ring improve crushing efficiency greatly
採用能提高粉碎效率的梯形磨輥與磨環。Compared with digital integrator composed of reversible counter, the trapezoidal formula digital integrator is utilized in integrating element of phase - lock controller, it has advantages in simple realization, fast transient response, wide lock range, insensitivity to disturbance
對鎖相控制的積分環節採用了梯形公式數字積分器，與可逆計數器構成的數字積分器相比，梯形公式數字積分器具有實現簡單、動態響應快、入鎖范圍大、抗擾動能力強等優點。Internal combustion engines - piston rings - half keystone rings made of steel
內燃機.活塞環.鋼制半梯形環Internal combustion engines - piston rings - half keystone rings made of cast iron
內燃機.活塞環.鑄鐵制半梯形環Internal combustion engines ; piston rings ; keystone rings ; identical with iso 6624 - 1 : 1986
內燃機.活塞環.第1部分:梯形截面環Half keystone ring
半梯形環Piston rings up to 200 mm diameter for reciprocating internal combustion engines : specification for half keystone rings
往復式內燃機用的直徑為200mm及其以下的活塞環:半梯形活塞環規范In accordance withthe system requirement, choose the panasonic fp0 - c32t plc, distribute the i / oand construct the signal inputelectrocircuit and output load electrocircuit ; designthe plc control flow diagram and compile the trapezoid diagram, then debugthem ; designtheplc communicationprogram basedonlabview. servo control subsystem ensures the machining precision of notched impactspecimen
根據系統控制需要，選用松下fp0系列c32t可編程式控制制器，進行i / o分配，並搭建信號輸入電路、輸出負載電路;設計plc系統控制流程圖，進而在fpwingr編程環境上編制梯形圖、調試;基於labview設計plc與外部通信的程序。分享友人