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- The theory of reverberant rooms and a new standard JB/T10504-2005 was introduced.Then based on JB/T10504-2005,a new reverberant room is constructed. 介绍了混响实验室的原理和新的空调风机噪声声功率级测试标准JB/T10504-2005,并根据新的标准设计了一个混响实验室。
- The theory of reverberant rooms and a new standard JB/T10504-2005 was introduced.Then based on JB/T10504-2005, a new reverberant mom is constructed. 摘要介绍了混响实验室的原理和新的空调风机噪声声功率级测试标准JB/T10504-2005，并根据新的标准设计了一个混响实验室。
- a reverberant room; the reverberant booms of cannon. 有回响的房间；回荡着隆隆的炮声。
- Design of Reverberant Room for Noise Measurement of Ventilators 空调风机噪声混响实验室的设计研究
- Keywords reverberant room;ventilator;noise measurement; 混响实验室;风机;噪声测量;
- After the reverberation room is built, it is shooed by acoustical measurement that every tales is satisfing or better than of the national standard. 测量表明，建成完工后的混响宣在声学万面的各项指标均满足或优于国家标准的要求。
- The sound source is placed in a reverberation room, and the receiving room is a small anechoic box. 这种方法,声源放在一个混响室内,而接收室是一个小的消声箱。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- It is hard to sleep without a cooler in this room. 没有空气调节器，在这间屋里很难入睡。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- Report on the Determination of Sound Absorption Coefficients of a Renhurst Rippletone Ceiling System in a Reverberation Room. 怡谱佳吊顶声学混响室法吸音系数报告。
- Combined with the project of reverberation room, some technical problems such as the volume, type, sound absorption, sound insulation and sound diffusion arc introduced. 结合混响室建设的工程实例，介绍了混响室设计中有关体积、体形、吸声、隔声和声扩散等方面的技术问题。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- He bounced into the room with a springy step. 他以轻快的跑步跳进房间。
- To measure the sound absorption coefficient in the reverberation room, theoretically it needs the room sound field spreading evenly, but in fact it's not. 摘要混响法测定吸声系数理论上要求室内声场扩散均匀，但实际的声场扩散并非理想；
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- The lack of air in the room make everyone sniffle. 屋子里空气缺乏，使得每个人都频频吸气。
- The furniture in the room was placed askew. 屋子里的家俱摆得歪歪斜斜。
- The girl went over the room quickly with a duster. 女孩用掸帚很快地把房间清理了一下。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
