隔音的

Then the absorption coefficient and transmission loss of materials in air and in water was discussed respectively.

再来则是分别就空气中与水中探讨材料的吸音与隔音性能。

Mineral wool acoustic board are set decoration, sound-absorbing insulation, fire retardant, cold insulation, energy-saving insulation in one of the eight characteristics of advanced materials.

矿棉吸声板是集装饰、吸声隔音、防火阻燃、隔冷绝热、节能绝缘八大特点于一体的高级装饰材料。

The biaobang brand elastic gum is a high-grade, convenient-to-use and powerful anti-corrosion product for protecting car underpan. it is made of unique polymers with strong glutinosity and osmosis. the coat formed by spraying has quick-dry property and good elasticity.

描述： 车底防锈弹性胶 elastic gum 本品是快捷方便的高档汽车护理用品，采用特种高聚物材料精制而成，不论是粘性还是渗透能力都更胜一筹，为快干型手喷弹性涂层，具有防锈防水、隔音堵漏及防撞击功能，可助您解决底盘腐蚀及隔音效果不良的烦恼。

The methods for controlling transformer noise are introduced: for noise source control,using high-quality silicon-steel sheet,and adopting effective measures in transformer design,techniques and installation;for noise propagation control,adopting muffler device,sound insulation board and isolation booth,etc.to enhance noise attenuation.

详细介绍了变压器的噪声控制方法，在噪声源控制上选用优质高取向硅钢片，在设计、工艺和安装等诸多方面采取有效措施降低噪声；在噪声传播过程中采用缓冲装置、消声法、设置隔音层、隔音室等方法增大噪声在传播过程中的衰减以降低噪声。

Noise-proof: Because having a minimum density and internal porous, wall materials have strong sound absorption features. Noise-proof effect that can achieve 40 dB or more is better than concrete and other building materials. Walls make you have a quiet and comfortable living space in the complex world.

隔音：墙体原料自身密度小，且内部有微孔，具有很强的吸音功能，其隔音效果优于混凝土等建筑材料，可达到40分贝以上，在繁杂喧闹的世界中，墙体让您拥有一个安静舒适的生活空间。

Worse, some construction contractors, unversed in the complex details of soundproofing, have been known to choose or install ineffective soundproofing products, leaving the client with a bill but no relief.

更糟糕的是，一些建筑承包商， unversed在复杂的细节，隔音，据知，有选择或安装无效的隔音产品，使客户的议案，但没有减免。

It is widely used in express-way,railway and tube tunnel and enjoys a glaring feature of being envi-ronmental-friendly, noise-absorbing,fireproof,corrosion resistant,therefore it is suitable for severe environment characterized by gale,heavy rain,strong sunlight,dampness and heavy dust.

我厂研发的新型"隧道专用吸音板"和"铁路隔音屏障吸音板"等系列产品，安装在铁路两侧和隧道内壁，它具有隔音吸音、降噪、A级防火防潮、耐腐蚀、抗老化、环保美观等功能，能有效降低道路机电车辆产生的噪声，美化道路、隧道环境。

May send polystyrene to have the nature lightly, moderately-priced, the thermal conductivity to be low, the hygroscopicity is small, electric insulation performance good, sound-insulated, quakeproof, moisture-proof, formation craft simple and so on merits, thus widely serves as profession and so on construction, transportation heat preservation heat insulations, sound-insulated, the earthquake resistance material, to serve as the electric appliance, the measuring appliance, the glass products, the electronic products and so on cushion packing material and the food packing

可发性聚苯乙烯具有质轻、价廉、导热率低、吸水性小、电绝缘性能好、隔音、防震、防潮、成型工艺简单等优点，因而被广泛地用作建筑、交通运输等行业的保温绝热、隔音、抗震材料、用作电器、仪表、玻璃制品、电子产品等的缓冲包装材料和食品包装

Went down for a testdrive of the new Mz2 on Tuesday.Drove both the auto and manual versions.Insulation is very good, as quiet as Kim's/Zepil's SPed ride, if not quieter.

在隔音方面 Mazda 表现的很出色，如不采用消声装置，也具有同 Kim's/Zepil's Sped 一样的隔音效果

Went down for a testdrive of the new Mz2 on Tuesday.Drove both the auto and manual versions.Insulation is very good, as quiet as Kims/Zepils SPed ride, if not quieter.

在隔音方面Mazda表现的很出色，如不采用消声装置，也具有同Kim's/Zepil's Sped一样的隔音效果

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。