杆

We conclude that early, scotopically related OPs may indeed be activated in the single response to the first flash in DA (i.e. without using conditioning flashes). Secondly, on its own, adaptation to mesopic BGL does not seem to trigger enhancement of the overall oscillatory response. The altered single oscillatory response to the first flash apparent in the mesopic BGL comprises a third cone-associated OP and seems to reflect a reorganization of the retinal microcircuitry from a predominantly rod-activated system to one of mixed rod cone neuronal activity in the inner part of the retina at the level at which individual OPs have their respective origins.

暗适应相关振荡电位可由暗适应后的闪光刺激激发形成，中间亮度照明背景的适应没有增加总振荡电位波幅，新增加的和视锥细胞活动相关的第三波峰可能反映了视觉系统适应活动的重新整合，即从之前的以视杆细胞活动为主导，转为视杆/视锥细胞的共同作用。

Results In one-month-course group,metachromatin of pericytes and endothelial-cell nucleus got together and were kept to sides,and membrane disks of rod cells were obscure with space slightly enlarged.

结果病程 1 月组，周细胞和内皮细胞核异染色质边集，视杆细胞膜盘模糊不清，间隙略有扩大；病程 3 月组，上述改变加重，毛细血管扩张、基底膜增厚，视杆细胞核固缩、异染色质浓集；病程 6 月组，上述改变更加严重，但毛细血管由扩张转为狭窄、变形，甚至闭塞。

Alter metallurgically or in design the elevating screw, the breaking and rapid wearing of which is now the chief structural weakness in the weapon.

改进升降螺丝杆的冶炼或设计，升降螺丝杆的损坏和迅速磨损现在是这种武器主要的结构缺陷。

Another object of the invention is to provide a harvester that efficiently removes the tops from millable stalk lengths of cane before the stalks enter the body of the harvester.

这项发明的项目二就是提供了一种在甘蔗杆进入机身之前就能有效地将甘蔗顶部从甘蔗的可轧杆上切除的收割机。

The recombi- nant hepatitis B virus polymerase expressed in cells infected by recombinant baculovirus was determined by SDS-PAGE, The hepatitis B virus polymerase was expressed in insect cells at high level.

结论利用杆状病毒表达系统，构建的重组杆状病毒在昆虫细胞中高效表达乙型肝炎病毒多聚酶，为进一步的乙型肝炎病毒多聚酶的体外功能研究奠定了基础。

This paper developed a multiple noded isoparametric element for the nonlineer analysis of space frames.

推导建立一种用于空间杆系结构非线性计算的多结点空间等参杆单元。

Paper electrophoresis showed that the Onobrychis viciaefolia and Medicago sativa cell line transformed with A〓 synthesized agropine and mannopine, and Onobrychis viciaefolia cell line transformed with LBA9402 Bin19 only synthesized agropine.

红豆草转化系获得再生植株。LBA9402 Bin19转化系可以抗100mg／l卡那霉素。苜蓿A4转化系未能得到再生植株。纸电泳分析表明红豆草A4转化系和苜蓿A〓转化系可以合成农杆碱和甘露碱，而红豆草LBA9402Bin19转化系只能合成农杆碱。

Most of hob design for non-involute gears are nowadays taken by approximation method.For example,the normal sectional profile of hob worm therad is usually regarded approximately as its basic rack profile.Recently, some new methods have been developed in this respect but, perhaps, they appear overelaborate since the principle of spacing engagement is based on. For this reason , the paper offers a new design procedure for hob worm based on the planar engagement principle with the intention of simplific...

本文应用平面啮合原理精确设计各种非渐开线齿轮滚刀的基本蜗杆，提出并应用啮合线的投影原理从工件齿轮端截面的啮合线直接求得刀具蜗杆的端面齿形，而不必求出媒介齿条的齿形，方法很简单，还从啮合线的投影原理简明而形象地证明了一对螺旋齿轮直接啮合过程的啮合线是一条垂直于齿向的平面曲线。

Ferritic irons have a considerably steeper permeability curve than pearlitic irons .

铁素体铁杆有一个相当陡峭的渗透率曲线比珠光体铁杆。

A new material hybrid pennisetum as raw material for the wood-plastic composite material were prepared and a modifier was used to improve the flow quality of pennisetum straw powder.

以杂交狼尾草为原料制备木塑复合材料，采用木粉改性剂对狼尾草秸杆粉进行部分降解实现狼尾草秸杆粉的改性，改善木塑复合材料制备中材料的流动特性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐