He moved with noiseless steps.

他脚步轻轻地走动。

I want to live somewhere noiseless.

我想住在寂静的地方。

Use noiseless sealed ball bearings.

采用无噪音密封滚珠轴承。

His breath was perfectly noiseless.

他的呼吸是没有声息的。

It's not only noiseless, it's invisible.

它不仅没有噪音，而且也小得让人看不见。

Saving energy, noiseless operation, saving material.

节能, 无声运行, 节材.

And to exchanging the contactor joint noiseless operating of electricity.

并对交流接触器节电无声运行.

An owl swoops from the ridge top, noiseless but as flame.

蓦地,山脊上一只夜枭飞扑直下, 悄无声响而赫然如一道火光.

Noiseless on his pneumatic shoes, the man came up behind him.

那人的气垫鞋没有声音，悄悄来到了他的身后。

The chiller adopt high-quality compressor and Italy pump, so it is very sate and noiseless , …

采用进口高品质压缩机及意大利水泵，安全宁静。