声音通过空气介质传播。
利用空气介质进行地震模型试验是一次方法性的尝试。
The experiment of seismic model in air medium is a methodical attempt.
利用空气介质中电晕放电理论对高压电缆局部放电试验连接导线进行了改进。
The connecting wire used for the PD test of HV cables was improved based on the corona discharge theory in air medium.
从而达到破坏水介质一侧岩石,且尽量减少空气介质一侧岩石爆破损伤的目的。
Water media face the side of the blasting rock and air media face the side of the obligate wall rock.
在等温环境下,测量了第一饱和状态下混凝土向非饱和空气介质传湿的全过程。
The procedure of moisture in saturated concrete transfer into unsaturated atmospheric media is recorded.
结果表明:气液二相流音速比单相液体或空气介质低得多,流动机构对音速变化有显著影响。
The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium.
用热分析天平连续称重法和线性回归分析对高温空气介质下t 91钢氧化动力学进行研究。
The oxidation kinetics of the T91 steel under high-temperature air medium was studied by serial weighing method with thermal analysis balance and linear regression method.
研究激光光束在井下空气介质中的传播规律,从理论和实践上探索和分析井下激光能量衰减的主要原因。
The propagation characteristics of laser beam in underground air medium were studied, primary causes of the laser energy decaying in the underground were explored theoretically and practically.
对于室内覆盖无线接收系统,提出了一种新型的基于U型反射板的双频天线单元形式,采用厚的空气介质层以展宽带宽。
For the indoor wireless communication system, a new dual-band antenna with U-shaped reflector is designed. By increasing the thickness of the air medium, the wider frequency band is achieved.
将空气的影响视为附加在电池阵上的广义质量,用数值方法模拟了航天器太阳能电池阵在地面试验空气介质中展开时的动力学过程。
Dynamic procedure of deployment of a solar array in the ground environment was simulated by numerical method, where the air influence was regarded as added generalized mass.
阵列天线辐射单元采用空气介质的微带贴片天线,辐射效率高;阵列天线的馈线网络采用低损耗的空气带状线形式,降低了馈线损耗。
The radiating element of array antenna is air dielectric microstrip patch antenna, which has high efficiency, and the feed network is low loss air strip, which can reduce the loss of the feed line.
提出了采用加热空气介质的高温空气槽测定材料热变形温度(HDT)的方法,通过几种高分子材料在油浴中及高温空气槽中测定HD T值的比较。
The way of heating air by using high temperature-air container was designed for the measurement of the heat deflection temperature (HDT) of polymer materials.
而如果这两种介质的密度相差较大,就像空气和水那样,那么大部分的能量将会折射回来,只有一小部分会继续传播进入到新的介质中。
If the two media have really different densities, like air and water, then most of the energy is going to be reflected back, very little of it will keep going and get transmitted into the new medium.
这项技术能够使空气折射率图形化-本质上就是特定介质下的光速。
The technique can image variations in what is known as the refractive index of air - in essence, the speed of light in a given medium.
声波传递需要介质,空气,水,岩石都行。
They need something to move through, like air, water, or rock.
典型的油蒸气过滤器所采用的吸附介质为活性炭,它可以将压缩空气中的油蒸气分子截获在其表面。
The typical oil steam filter the adsorption medium is activated carbon, it can be compressed air of the oil on the surface of steam molecular intercepted.
并与压缩空气和冷却介质进行热量交换。
And with the compressed air and the cooling medium to exchange heat.
冷凝器是放出热量的设备,将蒸发器中吸收的热量连同压缩机输入功率转化的热量一起传递给冷却介质(如水或空气)带走。
The condenser is a heat equipment, the evaporator absorbs heat with heat input power of compressor transformation with the transfer of the cooling medium ( such as water or air ).
空气及其他介质中的各种振动都是以波动的形式传播的。
The vibration in the air and in the other media travels as a wave motion.
我们的压缩机产品有油、气、电等多种动力驱动方式,压缩气体介质也包括空气、氮气和天然气。
The compressors can be driven by various methods such as petroleum, gas and electricity and set for multi-kinds of compressed media, such as air, nitrogen and natural gas.
金属在接触空气、水和湿气等介质时会受到破坏性的化学侵蚀,由于这种腐蚀,铁暴露在露天时要生锈。
Iron rusts at its exposure to the open air on account of the corrosion made by the destructive chemical attack of a metal coming into contact with such media as air water and moisture.
后冷却器的工作原理在于利用了冷却介质(如水或空气)与后冷却器出口处压缩空气的温度差异。
After cooler work principle is that use of the cooling medium (such as water or air) and after cooler the exit of compressed air temperature difference.
在水和空气不同管内流动介质的情况下进行了系统实验。
Systematic experiments were performed in the cases of water and air respectively.
工人每天接触不至于产生不良反应化学介质的空气浓度的极限值。
Limit Value Air concentration of chemical substances to which workers may be exposed to daily without adverse effect.
空气是声音传播的介质。
空气是声音传播的介质。
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