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Air springs with levelling system and vertical adjustment .

带调平系统和垂直调节的气动弹簧撑杆。

Much of the increase occurred during the 1980s and 1990s , and appears to be levelling off in the 2000s .

比率增长最快的是80年代和90年代，而到了2000年以后则趋于平稳。

Despite a recent levelling out after the first quarter 's collapse , the world trade organisation reckons global trade volumes will be around 10 % lower this year than in 2008 .

尽管国际贸易在第一季度的出现崩溃后，最近已趋于平稳，但国际贸易组织估计今年的世界贸易总量讲会比2008年下降10%。

Your alpha scan reading seems to be levelling off .

你的素描读数平稳下来了。

As for the goal of levelling the academic playing field , the state is pleased so far .

对于实现专业学术水平的目标，到目前为止的情况还是令人满意的。