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1·Through the process test, wearing test and microstructure observation and analysis, the convention performance of oxygen-acetylene flame spray welded layer is studied.

通过工艺试验、耐磨试验和显微组织观察分析，研究了氧-乙炔火焰喷焊层的常规性能。

2·Wearing test in laboratory and test in production show that service life of repaired parts is over two times longer than the new ones, and the work cost decreases by 49%-77%.

室内磨损试验及生产试验均证明了修复零件的使用寿命比新品提高一倍以上，作业成本降低49% - 77%。

3·The roll disk wearing testing machine is used to study the wearability of alloy cast iron after laser melting. The test result shows that the wear weightlessness is reduced greatly.

应用对滚圆盘磨损试验机研究了合金铸铁经激光熔融处理后的耐磨性，试验结果指出，激光处理试样的磨损失重大为减少。

4·In this article we discussed the possibility of replacement of cobalt alloy by Cr-Ni iron Base alloy in drill bit bearing on the basis of welding test, wearing test and microscopic examination.

本文通过焊接试验、显微分析和磨损试验论述了以铬、镍、铁基合金代替钴、铬、钨合金作石油钻头牙爪堆焊耐磨合金的问题。

5·Researchers wearing white lab coats wander into the corridor, occasionally opening huge chest freezers in search of test-tube samples.

穿着白大褂的研究人员，在走廊里走来走去。偶尔会打开大冰箱，找找试管样本。

6·I will not sneak around the backyard wearing funny clothes to test whether my master is a good watchdog.

我不会穿上可笑的衣服鬼鬼祟祟的从后院进来，就为了检验主人是不是一只好的看门狗。

7·The effect of unbalance weight of the crankshaft-flywheel on the engine's operation was studied from the view of shaking and wearing by means of tracing test.

通过跟踪试验，从振动和磨损的角度，研究了曲轴飞轮组的平衡对发动机工作的影响。

8·Through development and on-board test of ZA alloy bushing, its wearing performance has been further demonstrated.

通过ZA系列锌铝合金轴套的研制和装机试验，进一步证明其耐磨性能。

9·It is also a big test from me wearing this shirt because it was Patrick's shirt.

穿上这件球衣对我也是一个很大的考验，因为这曾是帕特里克穿过的球衣。