The selection and the layout of the spray nozzle,which is related to the flow co-efficiency,spray angle and effective 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。
1982 to July 1983 and introducing the annual mean value of air temperature,surface temperature,water vapor pressure,cloud amount and air pressure,the parameterized form of surface effective radiation was obtained with water vapor pressure,cloud amount and air pressure as the separate factors.
利用1982年8月~1983年7月青藏高原地面辐射平衡资料及五道梁能量平衡观测站的辐射观测资料,将水汽压、云量及气压作为独立的影响因子,同时引入了气温、地面温度、水汽压、云量、气压的平均量,给出了青藏高原地区地面有效辐射的参数化形式,与其它的参数化方案作了对比,该文的参数化方案计算误差小,计算结果较好。
The temperature distribution in aperture and directionally effective radiation regularity are analyzed by numerical calculation.
以方形孔道的辐射多孔体为研究对象,建立了考虑辐射作用时以及辐射与传导复合存在时的两种传热数学模型,数值计算分析出孔道内温度分布和定向有效辐射规律,并通过半工业燃烧通道试验加以验证,得到了相一致的结果。
Based on the fundamental laws of climatology,this paper presented a com- puting method for the effective radiation of the surface of bituminous concrete pavement and analysed some other approximate computing results of the effective radiation of bituminous pavement temperature field.
从气象学的基本原理出发,建立了路表有效辐射的日变化过程曲线的计算方法,并与 Barber、严作人及舒尔茨分别给出的结构温度场计算中有效辐射的近似计算方法进行了比较,分析结果表明:正确计算路表有效辐射对准确估计沥青路面温度场有重要影响。
This paper introduces a simple method of te sting the effective shooting-height, which changes the high-angle fire into le vel-angle fire, and decomposes the integrated shoot test of damage effect into hit probability test and terminal effect test.
介绍一种关于有效射高的简易试验方法 。
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。
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。
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。
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。
"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。
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.
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。
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。
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
radiobiological effectiveness factor
放射生物学有效因数
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
What's the range of this gun?
这支枪的射程有多远？
have a certain range, as of guns.
有一定的射程，关于枪支。
What is the range of your gun?
你的枪的射程有多远？
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。
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。
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。
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。