According to the developing tendency all over the world,the paper introduces the theory of laser forming and the and development in rapid metal tooling,forming,boring,incising,et al,points out the significance and the value of laser in the field of plastic forming .

結(jié)合國內(nèi)外的發(fā)展動態(tài)加勒比在线观看视频，簡述了激光加工原理欧美A级喷水视频免费看，介紹了激光在快速制模2020亚洲精品极品色在线、成形亚洲乱伦视频乱乱、打孔、切割及模具表面強化等方面的應用現(xiàn)狀国产,欧美性爱一区，并強調(diào)指出了激光在塑性加工領域中應用的重大意義和價值综合日韩。

Methods Incubating plate with foveolae was used to study the antibacterial effect of the water extract of tea.

方法采用平板打孔法對茶葉水浸液抗菌效果進行了檢測。

To check the results of keypunching.

檢查擊鍵打孔的結(jié)果无码专区无码专区丝袜美腿。

To avoid its use as a legal tender note, it can be perforated, punched, without a serial number or a serial of 000000, overprinted with the word "Specimen" or "Cancelled" in any language.

為了避免票樣被用作法定紙幣丁香欧美亚洲小说在线观看，票樣都被打孔，穿孔欧美性爱免费福利视频，不帶編號或只帶有000000編號（全為0）人人操大屁股，并在其表面以各種語言印有&Specimen&或&Cancelled&的字樣。

If you're old enough to remember those front panels.

如果你還記得那些打孔帶的符號黄色视频在线免费观看网扯。

The gene launches a biochemical process in which a molecule called plasmin perforates the membranes of tissues, causing the membranes to break down and allowing the cancer cells to escape into the bloodstream and to adjacent tissues.

這種基因啟動了一種生化過程黄片免费进，在這個過程中，一種叫做血漿酶的分子能夠在組織膜上打孔少妇黄色视频，并導致膜降解亚洲色图欧美色图观看日本一道，從而使癌細胞能夠流竄到血管和臨近組織。

The traditional filming planter perforates on plastic film, which easily forms harden surface soil layer, it is not good for the growth of crops which have weak break ground ability.

傳統(tǒng)鋪膜播種機在地膜上打孔播種容易形成板結(jié)欧美A片观看视频，不利于發(fā)芽破土能力弱的作物生長国内色站。

There are three styles of perforating: round hole, slot and slit.

打孔有三種款式，即是：圓孔有没有网站免费播放黄色一级片，長孔和裂線人妻啪啪色视频。

But this tie is elusive, imperfect as the election that produced it because when you are shuffling through 6 million votes and double-punched ballots and hanging chads and missing postmarks and the whole archaeology of human frailty, every count by machine or by hand yields a different result, each so close as to be all but meaningless.

但是這種不完善的選舉模式很復雜，這6日韩乱码一区二区三区，000黄色一级A片在线播放视频在线观看免费，000張選票可能會產(chǎn)生塞票（將多余的票圈選自己的候選人并投入投票箱——譯者注）、重復投票在线网址你懂、懸空票（打票機在票上打孔无码专区无码专区，但票上的紙片沒有脫落——譯者注）、選票破損免费看黄网站AV无码app下载、人民意圖等干擾因素影響可以在线看av的黄色网站，機器和人工檢票的結(jié)果全然不同，而即便相同欧美孕交视频，結(jié)果也沒有什么意義国产精品免费福利久久。

Entered the rewinding roll machine, rewinding role is to play the role of rewinding embossing punch.

卷紙后進入復卷機，復卷的作用是起復卷打孔壓花作用这久久精品。