大孔

Preload condition, the cylinder head bolt-hole depth of deformation of the cylinder sets a great impact on the proper cylinder head bolt hole depth Shen cylinder l

预紧工况下，缸盖螺栓沉孔深度对气缸套变形影响很大，适当的缸盖螺栓沉孔深度有利于减小气缸套变形。

Preload condition, the cylinder head bolt-hole depth of deformation of the cylinder sets a great impact on the proper cylinder head bolt hole depth Shen cylinder liner to reduce the deformation.

预紧工况下，缸盖螺栓沉孔深度对气缸套变形影响很大，适当的缸盖螺栓沉孔深度有利于减小气缸套变形。

The experimental tubings were PVC plastic tubings. The diameter of experimental PVC tubings is 40 mm, the wall thickness is 2.4 mm and the maximal bursting pressure is 12.5 bar. There were four PVC tubings. Each has a single hole with diameter of 0.9mm、 1.1mm、 1.3mm and 1.5mm.

以直径为40mm，壁厚为2.4mm，最大爆破压力为12.5bar的PVC管为实验材料，首先研究了在0.9bar、1.2bar、1.5bar、1.8bar、2.1bar这5种工作压力下喷孔孔径分别为0.9mm、1.1mm、1.3mm、1.5mm的单孔流量及近似射程，根据实验结果最终选择近似射程最远，喷孔孔径为1.3mm的微喷灌管作为单孔喷水量分布特性研究。

Granular corrosion products, surface corrosion pits, cracked and spalled passivation films are observed. The size of the corrosion pits is around several tens to several hundred nm in depth. After long testing time, lots of granular corrosion products ranging 200 to 300 nm in diameter are observed on the surface.

由即时撷取之不锈钢表面形貌影像发现，试片表面之平均粗糙度随著浸泡腐蚀时间增加而变大；试片表面之钝化膜亦被侵蚀破裂，试片表面之各种大小形态蚀孔亦能完整观察，蚀孔之深度自数十奈米至数百奈米不等。420SS於长时间浸泡腐蚀之后，表面生成直径约200至300奈米之颗粒状腐蚀生成物。

Methods The retinae of 6 postnatal 2-3 days Sprague-Dawley rats were dissociated into cell suspension with trypsin digestion. The cell suspension was implanted in 96-well culture plates covered with murine-tail collagen in each well(1×105 cells/well). The concentrations of PGP solution were 1g.L-1-10-5g.L-1. The period of culture was 1,3 and 5 days respectively, Then, the OD of living cells in each well was tested by MTT colorimetric microassay.

6只生后2-3d Sprague-Dawley大鼠，视网膜采用胰酶消化法制成细胞悬液后接种于经鼠尾胶原处理的96孔培养板(每孔1×105个细胞)，同时加入1g.L-1-10-5g.L-1PGP及DMEM，分别培养1、3、5d，用MTT法测量OD值。

And the pressure drop of liquid-layer is mainly influenced by weir height. With the increasing of weir height, the pressure drop increases. And it is independent of bare tower velocity and plate dimension. The correlation before was corrected as follows:ΔpL＝3911Z This paper analyzed the heat transfer coefficient between the outer wall of heat tubes and cooling water. And it was considered that plate geometries、weir height、bare tower velocity and heat flux density would affect the heat transfer coefficient.

而液层阻力主要受堰高的影响，堰高越高，液层阻力越大，与空塔速度和孔板的几何尺寸无关，对以往的公式进行修正后得到实验关联式如下：ΔpL＝3911Z 本文对加热管外壁与冷却水之间的换热系数进行了分析，认为孔板的几何尺寸、堰高、空塔速度以及热流密度均会影响换热系数。

The of vortex-induced oscillation with square pomes in web is smaller than round ones an...

翼板上开孔能提高吊杆顺桥向来流的驰振临界风速，甚至杜绝该方向驰振的发生，且开孔越大效果越好。

When the strength of hard rock is high, it has strong resistance ability to lateral impact of drilling bit, therefore, the borehole wall of shaped anchor bore is smooth.

鉴于锚孔孔壁粗糙度对岩锚承载强度影响较大，建议在以后的锚固工程设计以及预应力锚固规范的修订时对上述现象进行合理的考虑。

Processing company to hole, hole tapping and cylindrical bearings of fixed assets of the Company but the development of small space.

公司主要加工转孔，孔攻丝及轴承外圆本公司固定资产小但发展空间大。

Its compressive strength value is above 45% superior to the single-row brick-up, which shows the compress resistance superiority.

力学试验表明三排孔砌块的砌体抗压性能有很大的提高，其抗压强度要比单排孔砌体高出45％以上，体现了其抗压的优越性。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。