The crank and connecting rod mechanism, the cam mechanism and the eccentric wheel mechanism are used to transform the continuous movements into the reciprocal movements, yet these mechanisms have no constant transmission ratio and there exist rather large impact force while operating at high speed.

曲柄連桿機(jī)構(gòu)男人进入女人下部全黄大色视频、凸輪機(jī)構(gòu)和偏心輪機(jī)構(gòu)常用來(lái)將連續(xù)運(yùn)動(dòng)轉(zhuǎn)化為往復(fù)運(yùn)動(dòng)性色av夫妻生活片,一级a一级做，但這些機(jī)構(gòu)沒(méi)有恒定的傳動(dòng)比，高速運(yùn)轉(zhuǎn)時(shí)存在較大的沖擊力美女网站黄。

Our advantage lies in the guarantee of reliable quality and the ability to make high-grade UPVC products, like European style: big folding door, tilt/sliding door, tilt and turn door, three-sash tilt and turn window, middle hung window, tilt and turn window with a curved top, vertical bent sliding window, skylight, shutters; American Style: vertical sliding window, outward casement window with a crank system, etc.

我們的優(yōu)勢(shì)在于對(duì)可靠品質(zhì)的保證以及生產(chǎn)高檔UPVC門窗產(chǎn)品的能力九草免费在线观看，如：歐式的大折疊門，內(nèi)倒上懸推拉門在线精品国产女，內(nèi)倒內(nèi)平開(kāi)門在线无码91超碰，三扇內(nèi)倒內(nèi)平開(kāi)窗，中懸窗黄色永久免费在线网址，圓弧內(nèi)倒內(nèi)平開(kāi)窗av在线免费关看免费在线，立彎圓弧推拉窗，天窗午夜三级片免费在线观看，百頁(yè)窗免费人成在线视频网站；美式的手搖外開(kāi)窗和提拉窗等。

The conventional crank-link pumping unit is replaced by chain transmission and the driving power and the weight of unit are reduced.

它以&鏈傳動(dòng)機(jī)構(gòu)&取代了&曲柄—連桿機(jī)構(gòu)&欧美成黄色免费在线视频，改為牽引鏈直接牽引在线看毛片视频，降低了配置電動(dòng)機(jī)的功率，大大減輕了整機(jī)質(zhì)量偷国产乱人伦精品一区二区。

And if no electricity is available, users can charge the battery by hand by turning a crank.

如果沒(méi)有充足的電五月天天色图，使用者可以有手動(dòng)電池來(lái)轉(zhuǎn)換能量。

And if no electricity is available, users can charge the battery by hand by turning a crank.

如果當(dāng)?shù)貨](méi)有電力欧美a片网止，使用者也可以通過(guò)手動(dòng)搖動(dòng)手柄給電池充電青海三级片。

And if no electricity is available, users can charge the battery by hand by turning a crank.

如果沒(méi)有電力供應(yīng)，使用者可以通過(guò)一個(gè)手搖曲柄來(lái)給電池充電欧美一级A片欧美性视频。

And if no electricity is available, users can charge the battery by hand by turning a crank.

并且如果沒(méi)有可用的電六月色色网，使用者可以通過(guò)手搖動(dòng)搖桿來(lái)給電池充電。

And if no electricity is available, users can charge the battery by hand by turning a crank.

而且如果電力不足一级黄片美女的奶水，使用者可以通過(guò)搖動(dòng)一手柄來(lái)充電欧州色色。

The laptop, called the XO, does not use very much power. And if no electricity is available, users can charge the battery by hand by turning a crank.

是特別為發(fā)展中國(guó)家的兒童所定制的，其耗電量很小，并且即使是電能使用完的情況下日韩精品福利资源网站大全免费，使用者可以通過(guò)用手來(lái)轉(zhuǎn)動(dòng)手柄以此來(lái)給電池充電www的网址免费看。

The laptop called # does not use very much power and if no electricity is available, users can charge the battery by hand by turning their crank.

這種被稱作##的電腦并不費(fèi)電，并且如果沒(méi)有電源欧美特级黄色视频播放，用戶可通過(guò)轉(zhuǎn)動(dòng)手柄進(jìn)行手動(dòng)充電欧美一级做a影片爱橙影院。