查询词典 test tube

As showed in Fig.1, the diagrammed stress of short time endurance test forAs showed in Fig.1, the diagrammed stress of short time endurance test for500 hours at 565℃on welded-joint of T91-F12 is 240MPa. Considering the℃on welded-joint of T91-F12 is 240MPa. Considering thedispersity of±20％, stress of check test for 500 hours is 192MPa. The result±20％, stress of check test for 500 hours is 192MPa. The resultof short time endurance test for 500 hours at 565of short time endurance test for 500 hours at 565℃on T91-X20CrMoV121℃on T91-X20CrMoV121welded-joints is showed in Tab.5. The result shows that the short timewelded-joints is showed in Tab.5. The result shows that the short timeendurance stress of weldedendurance stress of welded-joints with two procedures at 565℃for 500 hours-joints with two procedures at 565℃for 500 hoursboth above 192MPa, and meet the requirement.both above 192MPa, and meet the requirement.

依据图1，对T91－F12 焊接接头 565℃温度下的短时持久性能 500 小时考核试验依据图1，对T91－F12 焊接接头 565℃温度下的短时持久性能 500 小时考核试验的图示应力值应为 240MPa，按照持久强度试验数据的±20％的分散度，取 500的图示应力值应为 240MPa，按照持久强度试验数据的±20％的分散度，取 500小时考核试验应力值为 192MPa.T91－X20CrMoV121 焊接接头 565℃、500 小时小时考核试验应力值为 192MPa.T91－X20CrMoV121 焊接接头 565℃、500 小时短时持久考核试验试验结果见表5 ，试验结果表明，两种工艺条件下的焊接接头短时持久考核试验试验结果见表5 ，试验结果表明，两种工艺条件下的焊接接头565℃温度下的短时持久性能，500 小时的持久断裂应力均高于 192MPa，结果符565℃温度下的短时持久性能，500 小时的持久断裂应力均高于 192MPa，结果符合要求。

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Salt Spray Test Chamber Environmental Test Equipment, Humidity Test Chamber, Thermal Shock Test Chamber, aging chamber, UV ultra-violet aging chamber, precision oven, rain test chamber, test chamber, such as sand and dust..

盐雾试验箱、恒温恒湿试验箱、冷热冲击试验箱、老化试验箱、UV紫外光老化试验箱、精密干燥箱、淋雨试验箱、砂尘试验箱等。

Salt Spray Test Chamber Environmental Test Equipment, Humidity Test Chamber, Thermal Shock Test Chamber, aging chamber, UV ultra-violet aging chamber, precision oven, rain test chamber, test chamber, such as sand and dust..

三。环境试验设备盐雾试验箱、恒温恒湿试验箱、冷热冲击试验箱、老化试验箱、UV紫外光老化试验箱、精密干燥箱、淋雨试验箱、砂尘试验箱等。

According to concrete conditions of the wing flap retraction-extension system of the 18 trainer aircraft, this paper ca nes out a research into the relibility demonstration test and the life test plans of the system, and deals with some key issues related to the test in a deep manner, such as relation between the reliability test parameters and the reliability indexes, converting from working time, composite test profiles, the mathod determining reliability test parameters for success ratio and so on.

本文针本对L8机襟翼收放系统的具体情况，研究了其可靠性验证试验和寿命试验方案，并深入研究了涉及试验的关键问题，例如：可靠性试验参数与可靠性指标之间的关系，工作时间与工作次数的折算，合成试验剖面，确定成败型可靠性试验参数的方法等等。

The handling stability is analyzed, mainly the steering transient response test of steering wheel step input、 the steering transient response test of steering wheel angle pulse input、 return-ability test、 steady static circular test and central steering test are carried out. With those test, how the front suspension system can influence the handling and stability performance is investigated.

在此基础上进一步建立了整车模型，包括前悬架系统、后悬架系统、转向系统、前轮胎系统、后轮胎系统、车身系统，分析了该车的操纵稳定性，主要进行了稳态回转试验、转向盘角阶跃输入、转向盘角脉冲输入、转向回正试验、转向盘中间位置转向试验，并通过这些试验来考察了前悬架对操纵稳定性的影响。

The raw data was processed by using axial, coronal and double oblique multi-planar reformation; Images obtained were graded in terms of quality with a 5-point scale(5=excellent, 4=good, 3=fair, 2=poor, and 1=nondiagnostic). In grading image quality at axial MPR, The radiologic specialists focused on the subarcuate fossa, tendon of tensor tympani, facial recess, vestibular aqueduct and pyramidal eminence, In grading image quality at coronal MPR, attention was given to the scute, crista transversa, fenestra cochleae, lateral malleal ligament and snake eyes signature of cranial nerve, In the grading of the image quality at double oblique MPR, the radiologic specialists concentrated on the malleus, incus, stirrup bone, upper bony semicircular and aquaeductus fallopii, and then to implement statistical analysis. In order to choose the minimum tube current values and the maximum pitch that can satisfy the diagnosis request, image quality of axial, coronal and double oblique reformation images was compared with different tube current groups. 15 ears of volunteers were used to test the validity with the scanning parameter. Subsequently noise, MTF and dose length product were measured by phantoms in different tube current and pitch, the parameters obtained were compared and taken into statistics analysis.

扫描模式使用临床常用的颞骨螺旋扫描方式：管电压120 kV，准直宽度20×0.6 mm，视野200 mm，重建矩阵512×512，旋转时间1 s/r，重建层厚0.6 mm，重建间隔0.3 mm，分别改变管电流(380、300、200、160、120和80 mA)和螺距(0.8、1.0和1.2)进行扫描和重建，然后对颞骨进行横断面、冠状面和双斜面多平面重组，于重组后的横断层面图像上选取弓形下窝、鼓膜张肌腱、面神经隐窝、前庭导水管和锥隆起5个解剖结构，冠状面重组图像上选取盾板、横嵴、蜗窗、面神经的蛇眼征和锤骨外侧韧带5个解剖结构，双斜面重组图像上选取锤骨、砧骨、镫骨、上骨半规管和面神经管5个解剖结构，在双盲的情况下由放射学专家分别对各管电流和螺距下扫描的重组图像进行评分，随后进行统计学处理，从中筛选出满足诊断要求的最低管电流值和最大的螺距，分别采用患者25例(15耳)用该管电流值和螺距验证其可行性；然后利用模体分别测试各管电流和螺距下的图像的空间分辨率、噪声及其剂量长度积，并对测试所得参数数值进行比较和统计学处理。

This article presents the methods of foundation treatment for immersed tube tunnel with focus on theoretical analysis of sand flow method, and also simulated test on foundation treatment technique for outer ring immersed tube tunnel, to verify feasibility of the construction method, hence winning key technical parameters to have been employed in the construction of outer ring immersed tube tunnel.

提 要：文章介绍了沉管隧道基础处理的方法，着重对砂流法进行理论分析；并介绍了外环隧道基础处理技术的模拟试验，验证了施工方法的可行性，获得了关键的技术参数；并在外环隧道施工中得到应用。

The experiment table on heat transfer of finned tube is established to test the validity of numerical simulation. The heat and temperature distribution of tube and the air around tube are measured.

为了证明以上模拟结果的准确性，建立了翅片管换热实验台，通过实验测出翅片管及其周围空气的温度分布和散热量，与数值模拟结果进行比较，从而验证了数值计算的准确性。

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我们普遍有大祸降临的感觉。