拉伸应变

The measured parameters including the changes of prevertebral height, the changes of anterior longitudinal ligament strain and the changes of vertebral disc's height; segments including upward and downward of the fractured vertebral bodies were observed.

标本分组，并分别在过伸牵拉、纵向牵引、器械加压三种方式下复位，观察椎前高度、前纵韧带应变值、伤椎上下椎间隙高度的变化。

Uniaxial tensile behavior of nickel foam under four different strain rales and four different temperature levels separately is studied.

研究了泡沫镍分别在四种不同应变率和四种不同温度下的单轴拉伸行为。

Using dual energy X-ray bone density instrument XR-36 model to detect the bone mineral density of the left femur of the rats. Using the strain test system, we examined the biomechanics index according the tension and three-spot bending test; we also examined the bone calcium of the lumbar vertebra through plasma emission spectroscopy . We examined the serum calcium and magnesium by using the nomal biomechanics method,and examined the serum acid phosphatase and osteocalcin by using the Elisa method.

使用NORLAND公司XR-36型双能X线骨密度仪，采用小动物骨密度测定软件，测定大鼠左后肢股骨的骨密度；使用应变测试系统，按股骨拉伸和三点弯曲试验，测定股骨生物力学指标；以等离子体发射光谱法测定腰椎骨骨钙含量；以常规生化法测定血清钙、镁含量及血清酸性磷酸酶含量；以Elisa法测定骨钙素含量。

In this paper, digital speckle pattern metrology has been applied to the direct observation and measurement of PLC shearing deformation bands. A systematic research, including experimental observation and numerical simulation, on the PLC effect in Al-Cu polycrystals during tension has been carried out at room temperature.

本文将数字散斑计量技术应用于对PLC变形带的直接观测，对室温下多晶铝合金材料拉伸过程中的动态应变时效现象开展了系统性的研究，并结合实验结果进行了数值模拟和分析。

Based a pair of self-invented clamps, a series of strain fatigue tests at 400℃ based on thin-walled tubular specimens of N18 alloy were carried out.

应用新型自研夹具对N18合金薄壁短管进行400℃下的单轴拉伸和等幅低周应变疲劳试验。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。