有效扬程,effective head
1)effective head有效扬程
1.About artificial lifted well in shallow heavy oil reservoir,chiefly because of the loweffective head,the system efficiency has been low.研究表明,对于浅层稠油油藏的机械采油井,油井的有效扬程低是造成系统效率低的主要原因,这同时也受到油层深度的制约;系统效率随蒸汽吞吐生产轮次的增加,逐步下降;在前几轮中下降的趋势比较明显,在后几轮中逐渐趋于稳定。
2.Through field investigation and data acquisition,analysis of the influences of the liquid producing capacity,driving engine andeffective head on system efficiency were made.通过现场调查和数据采集,分析了产液量、拖动系统、抽油机平衡和有效扬程对系统效率的影响,认为抽油机井的日产液量和电机的有功功率是影响机采系统效率的最终因素,这2个因素又受地层供液能力、井筒工况、地面设备等的影响,因此提高抽油机井系统效率是一个系统工程,只有从整体上进行分析和调整,实现最优化的配合,才能最大限度地提高系统效率。
2)effective range有效射程
1.The selection and the layout of the spray nozzle,which is related to the flow co-efficiency,spray angle andeffective range of the spray nozzle,is the primary difficulty in the design of the water spray cooling system.水喷雾灭火系统常用于液化气球罐的防护冷却,在球罐水喷雾灭火系统的设计中,水雾喷头的选择和布置是主要的设计难点,需要根据喷头的特性如流量系数、雾化角、有效射程的因素进行设计。
英文短句/例句
1.I didn"t fire the rocket shell until the enemy tank was within range当敌人坦克进入有效射程之内我才发射火箭弹。
2.The range of a modern shotgun is about 50 yards (45 m).现代猎枪的有效射程约为45公尺。
3.At this range, the enemy is too far away for standard rounds to be effective.这个距离远远超过了子弹的有效射程。
4.The maximum effective range of the twin 35 mm weapons is about 4,000 m, with a cyclic rate of fire of 550 rds/min.最大有效射程双35毫米武器的约4,000米，与循环率火警550策略/分钟。
5."The Best were made of yew, might require a force of 100 lbs (45 kg) to draw, and had an effective range of 200 yards (180 m)."最好的长弓用红豆杉类木材制成,需要的开弓力约45公斤,有效射程为180公尺。
6.The Air Staging Platform( ASP) is a complete refueling and repair platform that is designed to extend the effective range of aircraft.空军分段运输平台(SP)一个完全的补给与维修平台,以帮助空军提供更大的有效射程.
7.Don"t fire until you get within striking distance of the enemy敌人进入(有效)射程之后再开枪。
8.Through controlling the each step in process of darkroom disposal,improve the quality of the sciagram efficently.通过对暗室处理过程中各个环节的控制,有效提高射线底片的质量。
9.ESTIMATION OF EFFECTIVE DOSE TO AIRCREWS FROM COSMIC RADIATION DURING FLYING ROUTES民航飞行航程中机组人员所受宇宙辐射有效剂量的估算
10.radiobiological effectiveness factor放射生物学有效因数
11.RF Lap Technology and its Validity Analysis for Transmitters发射机的射频搭接技术及有效性分析
12.What"s the range of this gun?这支枪的射程有多远？
13.have a certain range, as of guns.有一定的射程，关于枪支。
14.What is the range of your gun?你的枪的射程有多远？
15.Thus the maximum horizontal range is attained when the departure angle is 45°.因此，当发射角为45°时，有最大水平射程。
16.Anything that allows immobilization of the enemy opens up for your ranged attacks, which are, the BEST in the game.任何可以固定敌人让你使用远程射击的技能在游戏中都是最有效的。
17.Most patients also received a placebo treatment during the study, an injection of saline solution, and showed no improvement.大多数患者在研究过程在中同时还接受了安慰剂治疗，即一种盐溶剂注射剂，但没有什么效果。
18.The results show that it is possible to apply the vertical launching techniques to the intercepting low altitude,short range or skimming targets with velocity.结果表明:将垂直发射技术应用于对付近程、高速、掠海目标是有效的,可以实现的。
相关短句/例句
effective range有效射程
1.The selection and the layout of the spray nozzle,which is related to the flow co-efficiency,spray angle andeffective range of the spray nozzle,is the primary difficulty in the design of the water spray cooling system.水喷雾灭火系统常用于液化气球罐的防护冷却,在球罐水喷雾灭火系统的设计中,水雾喷头的选择和布置是主要的设计难点,需要根据喷头的特性如流量系数、雾化角、有效射程的因素进行设计。
3)effective suction有效吸程
1.It is indicated in experiments that theeffective suction increases 8～12 times as aver.实验证明:风幕风机的有效吸程比普通抽出式风机增加了8～12倍,对呼吸性粉尘的治理效果尤为明显。
4)effective stroke有效冲程
1.Calcultion of parameters of uniform-strength multistage sucker rod string andeffective stroke of pumping unit;等强度多级抽油杆参数和有效冲程计算
5)effective level有效程度
6)valid program有效程序
延伸阅读
泵额定扬程分子式：CAS号：性质：指泵在额定工况下的扬程。它是泵性能的主要考核指标之一。
