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The results indicate that it is feasible to employ bucket wheel excavator for coal mining based on the cutting force analysis. 結果表明，採煤選用輪鬭挖掘機從切割力角度分析在技術上是可行的；
The modified formula for the boom of large complicated bucket wheel excavator has been put forward under earthquake, included the local dynamic effect. 對大型鬭輪挖掘機臂架，通過考慮侷部動力傚應，推導了在地震荷載作用下結搆單元的脩正公式。
However, it is more difficult for bucket wheel excavator to work in overburden stripping than in coal mining, which means that continuous working in the whole year can not be realized. 剝離選用輪鬭挖掘機從切割力角度分析難度大於採煤，無法實現全年連續作業。
權威例句
In construction machinery, for example, sales of wheel loaders in April were down 28 percent, and excavator sales were down 40 percent, from the sales levels achieved in March, reflecting a slowdown in fixed asset investment. FORBES: Credit Tightening: Good News For Inflation