The principal of buffer is described as follows.At impulsing down,the piston moves down and vacates the annular space.The pressure in respiratory cavity decreases to a certain level and the traveling valve opens.At that time,the liquids enter into traveling valve and cavity and the plunger is impulsed upward to carry out the gentle transient at the sudden change.When the upward impulsing begins,the respiratory cavity is subjected to pressure and the traveling valve closes.During the gradual pressure rising,the liquids in respiratory cavity effuse from the upper ventage and the sudden change of force-summing direction of plunger is relieved relying on the resistance of ventage.

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Because there is some mismachining tolerance in process of making ventage automatic positioning in the great mass of spinneret s, it brings a difficult problem in ventage automatic positioning, and it is important to solve the problem.

由于大部分噴絲板上微孔位置在加工過程中產(chǎn)生一定誤差26uuu色噜噜在线播放，因此在噴絲板自動(dòng)檢測(cè)時(shí)對(duì)微孔精確定位成為檢測(cè)首先要解決的問題。

And I think of it for a long time ,I plan to get the BEC ventage certificate .

我打算今年七月份考BEC中級(jí)国产欧美日韩一区，但是我到現(xiàn)在英語6級(jí)還沒有過掉日本体内she精3汇编，實(shí)在是慚愧，對(duì)英語學(xué)習(xí)的信心是每況愈下一级一片，特在此發(fā)帖在线观看AV麻豆，記下這段時(shí)間學(xué)習(xí)英語的歷程。xxxx.wwww。在线看片免费人成视频久网不卡。。最新国产美女口暴深喉。人人操天天操老太大逼人人操。

Ventage point we understand the power, purpose and value of the human being, the human mind and

另一些人則是無神論者，所以他們和一切人事物對(duì)抗hs视频网站。

Life is really about the ongoing, neverending refocusing from each new ventage point.

生活是關(guān)乎一系列的不停的意圖的轉(zhuǎn)換的一片黄网站。

The narrow-minded man is just like a ventage bottle. Fewer things it contains, greater noise it will made when they are poured out.

心胸狹隘的人就像小口瓶子；里面裝的東西越少毛片网站无码，倒出時(shí)的聲音就越大国产区影院。

There were cells adherent to the surface of materials as well as the inside of ventage in the cytoskeleton compound group.

細(xì)胞支架復(fù)合組材料表面及孔隙內(nèi)均有細(xì)胞附著。

Light microscope: bone block raritas porosity, ventage tegulation and few residue in it.

光鏡下見骨塊疏松多孔国产黑丝自拍，孔隙較規(guī)則日韩欧美一，孔中殘留物少。

Either party of the crime of affray must be more than 3 symbolized with villain characteristic of gathering in a crowd to engage in an affray with the inappropriate motive of revenge,ventage of ones anger and contention for hegemony.

聚眾斗毆罪的單方參加人須有3人以上欧美成a人v，具有出于報(bào)復(fù)99网一级A片在线免费播放、泄憤、爭(zhēng)霸等不正當(dāng)?shù)膭?dòng)機(jī)而結(jié)伙斗毆的流氓特征免费观看800AV大片。

Through BrdU cell labeled technology show autogeneic MSCs grow, proliferation in xenogenic deproteinizated bone ventage.

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