书脊

Sometimes the neighbour's pigeons land on my windowledge Cooing softly Where the great poplar at the window has somehow grown beyond the fourth-floor roof They skim round its crown and back The sunlight on their fluffy feathers Alive day by day I keep coming indoors empty-handed And throwing book and jacket on the bed As the days hurry by I can bring scarcely anything home Even after days away Only you remain and the little room Living day by day We have grown used By an unspoken pact to the room's breadth A pair of pigeons cooing softly on the windowledge Which at many instants belong to us Day by day Dust that falls on book spines gradually yellows Perhaps it is otherwise That life, if it does, provides I know that the unwitting request is not excessive And that summer turns to autumn Perhaps fallen leaves will swirl after a night of rain It does not mean a return to green shade deep in sunlight A house-cleaning when leisure affords Feelings may come on latent even as Irrelevancies are spoken softly The instant when a first trembling on the lips teaches you happiness Lasts till the end of life A request always voiced unwittingly

有时候，邻家的鸽子落在我的窗台上咕咕地轻啼窗口的大杨树不知不觉间已高过了四层楼的屋顶它们轻绕那些树冠又飞回来阳光在蓬松的羽毛上那么温柔生命日复一日我往往空着手从街上回来把书和上衣掷在床上日子过得匆匆忙忙我时常不能带回来什么即使离家数日只留下你和这小小的屋子生活日复一日面对无声无息的默契我们已习惯了彼此间的宽容一对鸽子在窗台上咕咕地轻啼他们在许多瞬间属于我们日复一日灰尘落在书脊上渐渐变黄如果生活时时在给予那也许是另一回事我知道，那无意间提出的请求并不过份我知道，夏日正转向秋天也许一场夜雨过后就会落叶纷飞不是说再回到阳光下幽深的绿荫日子需要闲遐的时候把家收拾干净，即使轻声述说些无关紧要的事情感也会在其间潜潜走过当唇际间最初的战栗使你感知了幸福这一瞬已延伸到了生命的尽头而那些请求都是无意间说出的

Use the offset business card printing and membership card making book cover, not only burliness, and post-systolic as a result of moisture absorption rates are relatively small, back-up the backpack.

用胶版纸制卡和会员卡制作的书封面，不仅结实，而且由于吸湿后收缩率较小，书脊背包得平整。

Riding with page stapler, and book and covers cross-nested set after a ride on the wire on the shelves of books and periodicals from the spine creases into the outside by two iron wire set up in a crate clasper is referred to as a horse.

在骑马配页订书机上，把书贴和封面套合后跨骑在订书架上，将铁丝从书刊的书脊折缝外面穿进里面，用两个铁丝钉扣订牢称为骑马订。

Back rounding: Forming the back of a book into a convex curve and thus the fore-edge a concave curve which makes the turning of pages more easy.

圆脊：把书脊做成凸起的圆弧，书口则是凹入的圆弧，方便翻阅。

If a copy of the book with the above mentioned five factors of an issue in the hours'work more cut-copies you wish to generate back-hemomediastinum, the greater the chance of butshe, producing a spine hemomediastinum dextrality.

如果每册书带有以上提到的5个不败不合洋的一个题目，那么屡屡裁切册数越众，爆发书脊破口的几率不离越不小反之，爆发书脊破口的几率不离越众。

Also need a cover, but according to the technical requirements of spine of the three marks at the dacpot cannot be parisand, and the books even more difficult to back-office fibroarthrosis endpaper, its main function is the book after the mysteriouses book page on four spine can be started to draw an irregular trapeziform hole, the role of the hole to be capable of a four-page books turned up sufficiently to the size of the hole should be determined depending on the thickness of the books, too big or too small affect book reading efficiency.

封面同样需要过胶，但按工艺要求书脊处的三条痕线内不能有胶水，更不能和书内页的书脊处粘连，它的主要作用是书成型后，掀开书页时在封四书脊处可拉开一个不规则的梯形孔，这个孔的作用能使书本的封四页充分打开，孔的大小应视书本的厚度决定，过大或过小都将影响翻书阅读效果。

But it should be avoid binding length is too long (bundling clip board size should be the clip Board's format and size that is greater than 10 mm above) and in a manner worthy of spine of the book, at the time to go forth of luck head, back of the rules, there was a stepladder to avoid handling.

但答制止打捆不幼度功不幼打捆夹纸不活（夹纸不活尺寸答不小于闭不梢尺寸10mm以上）与书帖书脊处不齐，闯齐天脚、书脊的端方边，制止搬运时呈现门路状。

The following 2 印张, back-order at around 2 mm width in accmulation, horse-riding after back-office set the superposition of the pages will be some tension in the wire nail.

在2个印张以上时，书脊的订口处补偿宽度在2mm把握，骑马订后书脊处叠加的册页会被铁丝钉拉不松一些。

Therefore, on the tyingor pressure tightness, after the book block glued on, such as PVA flameretardant synthetic resin glue, as a result of back-and-glue absorption will be formed when a certain amount of expansion and make the following is issued on virtual spine of incrassation, it should first be used book compactor, later when he was on the cover of dvysocket students'computer package, so that the spine is firm and materials deformation-induced backs wrinkles.

所以，对捆压紧实后的书芯，上背胶（如PVA聚乙烯醇合成树脂胶）后，由于书背吸胶水后会产生一定量的膨胀而使书脊增厚发虚，故应先用压书机压实，尔后上机包糊封面，这样书脊就比较紧实，防止受压变形引起的书背皱纹。

The role of the spine of the paper is to strengthen lining and book block of bond strength to strengthen central lining in book Groove at the intensity, so that bridgeis the spine of success a good book plays an important role.

书脊纸的作用在于加强环衬与书芯的黏结强度，加强环衬在书槽处的强度，使书脊牢固，这对成功做出一本好书起着重要作用。

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。