反复试验

4LZ－0.5、4LZ－0.2mico-combine was develop-ed by our scientific research personnel's by trial and error and absorbing many excellences from medium and small combines in many years,which had been judged by Hunan province in 2004 and obtained nati-onal patent,and which are a newly combine that can be suitable for the natural conditions in South,the requirementsof agriculture and the economical status of county.

4LZ－O.5、4LZ－0.2微型水稻联合收割机是我公司科研人员根据我国南方水稻的自然条件、农艺要求和农村的经济状况，吸收了国内外中小型联合收割机的长处，经多年的反复研究试验而成的一种新型联合收割机，2004年通过省级鉴定，并已申请国家专利。

The correct distance for a given throw is determined by a little trial and error, helped out with a bit of arithmetic.

正确的距离感则来自于反复地试验，并辅以一点计算。

Calvaria was obtained and scissored into pieces on the super clean blench through sterile method after fetal Kunming mouse within 24 hours were killed by cervical dislocation in the experiment.

试验采用24h内昆明乳鼠，拉颈处死，无菌取出头盖骨，在超净工作台内将其剪碎，先用0.25%胰蛋白酶37℃消化30min，然后用0.2%胶原酶37℃振荡消化60min，反复吹打骨片分离更多细胞。

Calvaria was obtained and scissored into pieces on the super clean blench through sterile method after fetal Kunming mouse within 24 hours were killed by cervical dislocation in the experiment. The bone pieces were digested by 0.25% trypsin for 30 min at 37℃ at first, then digested by 0.2% collagenase at 37℃ in constant temperature oscillator for 60 min, and rinsed repeatedly to disaggregate more single-cells.

试验采用24h内昆明乳鼠，拉颈处死，无菌取出头盖骨，在超净工作台内将其剪碎，先用0.25%胰蛋白酶37℃消化30min，然后用0.2%胶原酶37℃振荡消化60min，反复吹打骨片分离更多细胞。

By testing and adjusting the system again and again, we have the basic functions such as Adding, Storage, Transmission of the Data of Digital BOXCAR, and getting temperature and stress information by analyzing the original data.

通过反复的试验与调整，我们已经实现了数字BOXCAR的数据AD转换、高速采集、基本叠加、存储和数据传送，以及可以通过数据处理提取有用的温度和应变信息的功能。

Forth, the broaching tool is tested and its structure and geometrical parameter is improved .

4对研制的刀具反复进行切削试验，不断分析、总结、改进其结构和几何参数。

In order to quantitatively analyze the aseismatic performance of this kind of beam-column assemblies through whole loading history, the non-linear FE analyses of the cross beam-column specimens were carried out by ANSYS. Compared to the experimental results, the finite element analyses cast a further light upon the characteristics of this beam-column assembly while being subject to cyclic reverse loading.

为了能对这种细晶钢筋增强混凝土结构的抗震性能有较为准确的定量分析，采用ANSYS有限元软件对十字形梁柱组合件进行了受力全过程的非线性有限元分析，并将分析结果与试验结果进行对比，从而进一步了解细晶高强钢筋混凝土梁柱组合件在反复荷载下的受力性能特点。

Another experimental program is conducted, which purpose is to study the behavior of slab-column connections with nonrectangular columns subjected to earthquake forces.

5进行了两个大比例模型的十字形中柱－板柱连接在竖向荷载和低周反复水平荷载作用下的冲切性能试验，研究了这种柱型板柱连接的抗震性能，试验结果表明，异形柱中柱－板柱连接具有一定的抗震能力，在板柱结构中引入异形柱是可行的。

The wall sheathings are screwed on cold-formed steel studs, with 12mm gypsum board on one side and 9 mm oriented strand board on another side. Both static and cyclic load tests are conducted for a same size specimen. The purpose is to find the effect on shear strength from different height-width ratio, and to get the shear resistance limit by static and cyclic loading.

同样尺寸的二个试件分别在顶端进行水平单调加载和水平方向低周往复加载抗剪试验一次，试验目的是测试墙体的不同高宽比对抗剪强度的影响以及墙体在单调加载及低周反复加载两种情况下的抗剪强度Pu并做出比较，从而对墙体构造及设计提出改进建议。

Composition,microstructure and performance of the TLP diffusion bonding zone of B10 Cu-Ni alloy/low carbon steel using H62 brass interlayer were examined by means of SEM and OM,EDX analysis,microhardness test, shear test and alternating bend test.

用扫描电镜组织观察、能谱微区成分分析、显微硬度、剪切试验、反复弯曲试验等方法，研究了以H62黄铜为中间层的B10白铜/20钢双金属管的瞬间液相扩散连接。

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。