In addition, t, he hardness of foam is be adjusted by changing the air mixing proportions. Thus the foam adsorbability is improved in the vertical plane.

另外，通过调节混入空气的比率可以调节泡沫的软硬度，从而使得泡沫在垂直面上具有较强的附着性。

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In many people's eyes, going by air would be the best choice when traveling, however, in recent years, the increasingly high frequency of plane crashes make some people hesitant to take the plane.

在许多人眼里，由空气中将在近几年旅游时的最佳选择，但是，飞机坠毁的频率越来越高使一些人不愿采取飞机。

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The goods arrived exactly on time by air-plane of air China and could be put on sale without delay.

货物已准时由中国航空空运寄到，刚好能够适时应市。

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The Pope, who is turning 81 this month, looked frail as he arrived in Athens on Friday morning for the 24-hour visit, descending the steps of his plane slowly but unaided to be greeted by a Greek Air Force honour guard.

CNN: Pope moves to heal ancient rift