定製式助聽器

優點：

1、相對耳背機，定製式助聽器種類比較小，可以擁有很好的隱蔽性，美觀大方。因為遍及採用高分子抗過敏材料，舒適便利。

現在干流的助聽器種類是耳背式助聽器及定製式助聽器。

耳背式助聽器分為一般耳背式（BTE）和開放式耳背助聽器。

總結了助聽器種類及其優缺點，希望能給我们一點幫助。

助聽器的種類

假如按聲音的傳播途徑來分類，我們能够把助聽器分為氣導式助聽器和骨導式助聽器。

假如按功率大小來分類，我們能够將助聽器分為小功率助聽器、中功率助聽器和大功率助聽器。

假如按作业原理來分類，我們能够將助聽器分為模擬助聽器、模擬手動編程助聽器和全數字助聽器。

假如按輸入輸出方法來分類，我們能够將助聽器分為線性和非線性助聽器助聽器。

對於普通的助聽器用戶，其實我們並不需要記那麼多，只需記住以下思維導圖即可。


盒式助聽器
市場上盒式助聽器越來越少，根本已被淘汰。它功率比較大，受話器離麥克風比較遠，所以不易引起反饋嘯叫。

盒式助聽器缺點明顯，外形大，隱蔽性差，不美觀。由於佩带在身上，方向性弱，有噪聲干擾，音質不夠清晰，活動起來也不方便。

客觀聽力檢查主要包含聲導抗檢查，耳聲發射檢查和聽性腦幹反應測聽。

1、聲導抗和鼓室導抗測聽。聲導抗檢查是客觀測試中耳傳音系統和腦幹聽覺通路功用的办法。鼓室功用曲線以A 、B 、C三個大寫字母分別代表正常型、平坦型、鼓室負壓型，不同的波形反應的意義是纷歧樣的。

1、音叉試驗。音叉試驗是聽力檢查最常用的底子方法。用於开端断定耳聾，但不能判斷聽力損失程度。音叉依頻率不同，分為C128、C256、C512、C1024、C2048，分別發出不同聲音。順便引申一下，最早的音叉竟然是以餐叉為原型而設計的，是不是感覺很奇特？

2、純音測聽：用於判斷有無聽覺障礙，估計聽覺損害程度。是一種最常用的主觀測聽法。純音聽力結果以純音聽閾圖呈現，橫坐標為頻率（Hz），縱坐標為聲級（dB）。檢查完畢後純音聽力結果為兩條曲線，即氣導和骨導，根據兩者的關係判斷聽力損傷的類型和程度。

The dependence of Chinese textile industry to resource rate is higher, the sources of energy is used up bigger, at present the industry is facing many difficulty in the energy-saving job that decrease a platoon: For instance the energy-saving investment that decrease a platoon is not worth most spin enterprise, advanced tooling is used rate is lower, the pressure of capital, technology is faced in real work, the industry is energy-saving a bit of the job that decrease a platoon cannot lax. And the reality in facing the job is painful, no matter be guild or enterprise, trying hard actively, shift all sorts of resource, advance effectively what promote the energy-saving work that decrease a platoon, to “ 925 ” end in order to realize the ” of relevant “ good target of the energy-saving task that decrease a platoon.

Where be hard?

"Today is the date that round-the-world group establishs Daqing 60 years, until next year new company go into operation is produced, I look certainly again. " this was last year on October 27, during 60 years of Daqing of company of Yantai round-the-world group, if when He Guangyuan of minister of ministry of former mechanical industry comes to a company to attend celebration ceremony, to round-the-world group president Zhang Momou says. Why the minister does not have a slip of the tongue, on August 21, 2010, why to often come to round-the-world group again. This also is why the minister comes to company of Yantai round-the-world group the 3rd times inspect directive job inside time of a year, body reveals older generation machinery to be versed in course of study leads the attention of round-the-world to Yantai group and care.

Recently, garden of industry of a replacement of car of the Huaihe River of river of part of post of county of abundant of mayor of Hefei of the Anhui province,

This means industry of tire of the Anhui province to come true from make “ wisdom build ” span.

[hardware net] a few days ago, the facility of Russia international machine tool that association of industry of tool of Chinese machine tool visited to be held in Moscow and metal machine trade fair MATALLOOBRABOTKA2011, to Russia machine tool industry development undertook making an on-the-spot investigation. Introduce according to association of Russia machine tool, 2008 ～ 2009, suffer financial crisis effect, russia machine tool industry glides badly, second half of the year began to pick up 2010. Anabiosised in the round as Russia economy 2010, auto industry grows 27% , machine tool industry grows 14% .

Russia government published two policy general to urge action actively to arriving since the development of Russia machine tool industry: It is 2011 ～ the government will invest 1 billion dollar to machine tool industry 2016, among them 750 million dollar is used at product development, 250 million dollar is used at technical reformation, raise Russia to have the making capacity of machine tool industry. The target is to develop new product every year 50 ～ 60 kinds. Give out the new product that come to grinding, congener machine tool limits an import inside 3 years. Rose on July 1, 2011, use at the machine tool of national defence war industry, want home to have not concessional import of production only, be in charge of examining by machine tool association. 2 it is to rose 5 years 2011 inside, russia government will throw 300 billion dollar to be used at the construction of power facilities and nuclear power plant, basically use at purchasing equipment. In the meantime, 10 years Neieluosi equips in the military affairs respect (machine tool, warship) will invest 900 billion dollar, among them the technical reformation that 400 billion dollar will use at the foundation to equip, this shows, russia machine tool industry will get the support with all-time government and huge market are pulled move. Produce the rise to Russia machine tool industry main effect undoubtedly, also will bring corresponding business chance to industry of global machine tool.

Since the 18th congress of the party is held, qingdao can exhibit course of study to had gone 5 years not ordinary. In recent years, Qingdao city can exhibit propertySwift and violent development, rely on admirable meeting to exhibit resource and industrial basis, published each policy to drive early or late can postpone estate development. In addition, qingdao city develops the strategy through carrying out high end to be able to be exhibited, introduce international early or late famous exhibit meeting, and compose is built " 4 areas are taken " layout, let Qingdao can exhibit course of study to realize a quantity to pledge double those who rise span type develops. To 2020, do one's best makes brand of international of 10 above characteristic can exhibit an activity, year exhibits an area to achieve 4 million square metre, drive Qingdao city to become radiation northeast inferior city of international exhibition center.

Qingdao city can exhibit property from one branch alone beautiful to let a hundred flowers blossom