查询词典 DN

In this study, we found that the positive immunostaining for αSMA was increased in group DN from week 4 onward, mainly located in dilated tubuli, which was more evident at week 8. The double staining for CTGF and p27kip1 showed that the increased positive staining for both antibodies was more evident in tubuli and some glomeruli.

正常大鼠肾脏可以有少量细胞P27kip1染色阳性，本研究发现，在DN模型组，第1周起肾小球和肾小管P27kip1染色阳性细胞即显著增加（P＜0.01），且随着病程进展，P27kip1染色阳性细胞比例显著增加。

The object of the present paper was to study the relationship between corrosion fatigue crack growth rate da/dN and stress intensity factor amplitude ΔK of 07MnNiCrMoVDR steel by corrosion fatigue crack growth rate experiment in H2S solution. This steel is the typical material used in chemistry and oil chemistry equipment in our country. Corrosion fatigue safety assessment method of pressure vessels with defects in service could be explored and investigated.

本文研究通过对我国化工和石油化工装置中的典型材料07MnNiCrMoVDR钢在腐蚀介质H2S水溶液中疲劳裂纹扩展速率的研究，寻找其腐蚀疲劳裂纹扩展速率da/dN和应力强度因子幅值ΔK之间的关系，探索研究在役含缺陷压力容器腐蚀疲劳安全评定技术。

Dn-311 similar saturated optimal design was used in experiment with 3 factors and 5 levels, Studying on the control effect of different concentration and different applied times of asomate and anti-cold preparation for apple tree canker.

采用 Dn— 31 1近似饱和最优设计三因素五水平试验，研究了福美砷与抗寒剂分别以不同浓度混配及不同时期喷雾对苹果树腐烂病的防治效果。

Thus, in less than DN 50 (2 in) the pipeline, the frequent changes in the flow of cleaning fluid is a better 5, since the balance, axial piston, non-automatic check valve is recommended to use the pipeline in the flow fluctuations, such as reciprocating compressors and pumps export pipeline.

因此，在不大于DN 50(2 in)的管道中，对于频繁地改变流向的清洁流体是比较好的5、自平衡，轴向活塞，非自动式止回阀，推荐止回阀用在流量波动的管道中，如往复式的压缩机和泵的出口管道。

In view of DN 1600 mm Multi chamber drying tower, its drying mechanism, structure design, parameter calculation, operation effect, problems and some measures are discussed, also the choice of the matched equipment is made.

介绍DN 1600 mm多膛干燥塔的干燥原理，结构设计，参数计算，使用效果，存在问题及改进措施，并对配套设备进行选型。

Although we have not a tool to directly modulate the cellular Cdc42/Rac activity at present, nevertheless, from the abolish of BDNF-triggered attraction by either DN-Cdc42 and CA-Cdc42, we propose that an intracellular Cdc42 activity gradient may also be sufficient to determine the turning direction, say, filopodia extend preferentially at the higher Cdc42 activity side, and the growth cone turn towards this direction in the hence.

虽然我们目前还没有一个直接操纵细胞内 Cdc42或其下游分子活性的方法，但从 DN-Cdc42和 CA-Cdc42均阻断到 BDNF 和 ryanodine 的吸引作用来看，我们推测， Cdc42的活性梯度很可能也能够决定生长锥转动方向，即丝状伪足在 Cdc42活性高的一侧优先延伸，生长锥朝向该侧转动。

Study an analysis according to what to rupturing the relation of tenacity and other reachs material crackle to develop a process, we see not hard be worth in Dn tall and below the case that is put in circumferential stress, the change of the finishing of high-speed steel and the deepness of surface of high-speed steel sclerosis with the small amount that contain carbon has important sense.

根据对断裂韧性和其它的关系及材料裂纹发展过程的研究分析，我们不难看出在dn值高且存在圆周应力的情况下，高速钢的表面处理和含碳量低的高速钢硬化表面深度的变化具有重要的意义。

Products have: NB-KR series, NBC series of carbon dioxide gas shielded welder, LGK8 Series air plasma arc cutting machine, WS Series DC argon arc welding machine, WS series IGBT inverter DC argon arc welding machine, WSE Series AC-DC pulse argon arc welding machine, ZX5 Series Thyristor rectifier arc welder, ZX6 series three-phase rectifier arc welder, ZX7 series IGBT inverter DC arc welding machine, ZXG Series rectifier arc welder, ZXE1 Series AC-DC dual-use arc welding machine, BX1 Series, BX3 series, BX6 Series AC arc welding machine, steel electroslag welding stress, pedal-style capacitor discharge spot welder, UN series of welding machine, DN Series AC Spot Welder foot, DNY Series mobile communicate spot welder, DN2 fixed pneumatic spot welding machine, D N2 fixed aerodynamic point of convex welder, CG series gas cutting machine, CNC cutting machine door, Intersection CNC EDM Series , flame brazing machine series, automatic welding machine series, MZ series automatic submerged arc welding machine, automobile manufacturing special welding equipment, robot applications, such as large family of more than 29 varieties.

生产的产品有：NB-KR系列、NBC系列二氧化碳气体保护焊机，LGK8系列空气等离子弧切割机，WS系列直流氩弧焊机，WS系列IGBT逆变直流氩弧焊机，WSE系列交直流脉冲氩弧焊机，ZX5系列晶闸管整流弧焊机，ZX6系列三相整流弧焊机，ZX7系列IGBT逆变直流弧焊机，ZXG系列硅整流弧焊机，ZXE1系列交直流两用弧焊机，BX1系列、BX3系列、BX6系列交流弧焊机，钢筋电渣压力焊机，脚踏式电容储能点焊机，UN系列对焊机，DN系列脚踏式交流点焊机，DNY系列移动式交流点焊机，DN2固定式气动点焊机，DN2固定式气动点凸焊机，CG系列气割机，门式数控切割机，数控相贯线切割机系列，火焰钎焊机系列，全自动堆焊机系列，MZ系列自动埋弧焊机，汽车制造专用焊接设备，机器人应用系统等二十九大系列百余个品种。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 3 row 2.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None None Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction None Single nut Right-hand, left-handmust be chec...

载荷钢球圈列数 DN值预压预压方法导轨型号 3列 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 2520.0 螺纹条数防尘措施。。。

Number of loaded circuits DN Value Preload Method for Providing a Preload Type of guide 2 row 2.50 turns 70000 None None Ball Shaft process method Ball cage Splined portion Hollow shaft Recommended support unit on the Fixed Side type Precision None None None None Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball Rigidity in the axial direction None Single nut Right-hand, left-handmust be chec...

载荷钢球圈列数 DN值预压预压方法导轨型号 1row 2.50圈 70000 无无滚珠丝杠轴加工方式球保持器轴的花键部分中空轴轴承支撑座固定侧的推荐方式精密无无无无轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球轴方向刚性无单一螺帽右螺纹，左螺纹，左右螺纹无 890.0 螺纹条数防尘措施。。。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。