古斯塔夫登陆时的强度为二级风暴,风速大约每小时175公里,预计新奥尔良将连续数小时受到冲击。
Gustav landed as a secondary storm with a wind speed of about 175 kilometers per hour, and New Orleans is expected to be hit for several hours in a row.
速度升高到1.3马赫(速度单位,1马赫=音速=340.29m/s——译者注)以后,不会再对冲击波强度造成太大的影响。
Increasing speeds above Mach 1.3 results in only small changes in shock wave strength.
飞行高度决定了冲击波到达地面所需要行进的距离,它对冲击波强度的影响是最大的。
Altitude determines the distance shock waves travel before reaching the ground, and this has the most significant effect on intensity.
山丘、河谷和其它地貌特征会造成多种冲击波的反射并影响其强度。
Hills, valleys and other terrain features can create multiple reflections of the shock waves and affect intensity.
一些飞行动作——拉升、加速和S型转弯——会增大冲击波的强度。
Some maneuvers — pushovers, acceleration and "s" turns — can amplify the intensity of the shock wave.
强度最大处位于飞机正下方,随着离飞行路线的横向距离的增大强度不断减小,直到因为冲击波在地面的折射而消失。
Maximum intensity is directly beneath the aircraft, and decreases as the lateral distance from the flight path increases until it ceases to exist because the shock waves refract away from the ground.
冲击波的行进方向和强度受到风、飞行速度及方向、气温和气压的影响。
The direction of travel and strength of shock waves are influenced by wind, speed, and direction, and by air temperature and pressure.
一般,飞机飞得越高,冲击波(到达地面)所需要移动的距离就越大,使得音爆强度减弱。
Generally, the higher the aircraft, the greater the distance the shock wave must travel, reducing the intensity of the sonic boom.
随着冲击波的圆锥体变得越来越宽,并且不断向外向下移动,它的强度不断减弱。
As the shock cone gets wider, and it moves outward and downward, its strength is reduced.
最新消息:宾州的研究者已经构想了一种推进飞船用的发动机,其船体带有足够强度的减震器,可以经受正反质子湮灭时的冲击。
Update: Penn State researchers have conceived of an engine to drive a spacecraft with shock absorbers tough enough to survive the collisions of protons and antiprotons.
古斯塔夫登陆时的强度为二级风暴,风速大约每小时175公里,预计新奥尔良将连续数小时受到冲击。
Gustav came ashore as a Category Two storm, with winds moving at 175 kilometers per hour. It is expected to lash the city for several hours.
最重要的是,前后不一致的冲击强度从一批批的机会增加了部分破损。?
On top of that, inconsistencies in impact strength from batch to batch increased the chances of having part breakages . ?
其冲击强度是聚氯乙烯的20倍,尼龙66的10倍,聚四氟乙烯的8倍。
Its impact strength is 20 times that of polyvinyl chloride, nylon 10, 66 times, 8 times of ptfe.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
A part surface can be infiltrated with a low melting point metal to increase density, strength, hardness, ductility and impact resistance.
提高热变型温度和代温冲击强度。
Impact heat distortion temperature and low; temperature impact strength.
与市面上的井盖不同的是,它是用液压机压出来的,抗冲击强度较大。
Unlike the market covers is that it is pressed out by hydraulic machine, high impact strength.
PC板材最显著的优势是透光率高,耐冲击强度高等成为建材市场宠儿。
PC board is the most significant advantage is the high light transmittance, resistance to impact strength higher makes building materials market favorite.
而且还能够让墙面的抗冲击强度得到一定的增加。
But also to make the wall of the impact strength has been increased.
一般而言,大多数热塑性材料具有较高的抗冲击强度、耐腐蚀性以及良好流动性使其容易加工而适于复杂成型设计。
In general, most of the thermoplastic materials offer high impact strength, corrosion resistance, and easy processing with good flow characteristics for molding complex designs.
缓慢关闭阀门,削减冲击波的强度。
它具有柔韧性好、冲击强度高等特点。
它具有柔韧性好、冲击强度高等特点。
该涂料可室温固化,并有着优良的附着力和耐冲击强度。
The coating can be solidified at room temperature, with excellent adhesion and Impact strength.
人们发现,动态应力强度因子的变化滞后于应力脉冲冲击几微秒。
The dynamic SIF variation was found to lag behind the stress - pulse impingement by several microseconds.
熔覆层具有较好的拉伸、冲击强度和较好的韧性;
The cladding layers have good tensile, impact strength, and good ductility.
增加产品强度提高冲击性能。
在低温下也能承受高冲击强度。
载荷和抗冲击强度试验,发现这种井盖的载荷力为24吨,抗冲击强度也超过了普通井盖。
Load and impact strength test, found that this covers the load of 24 tons, the impact strength is higher than that of conventional manhole cover.
因此,镇静钢材主要用于低温下承受冲击的构件、焊接结构及其他要求强度较高的构件。
Therefore, the steel is mainly used for low temperature impact of the impact of the components, welding structure and other requirements of higher strength components.
因此,镇静钢材主要用于低温下承受冲击的构件、焊接结构及其他要求强度较高的构件。
Therefore, the steel is mainly used for low temperature impact of the impact of the components, welding structure and other requirements of higher strength components.
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