Smokeless coal is better for the environment.

无烟的煤对环境更好。

The new stove is smokeless and more efficient.

新的炉子是无烟的，而且更高效。

We switched to a smokeless grill for our barbecue.

我们换用了一个无烟的烤架来烧烤。

Using a smokeless fireplace can improve indoor air quality.

使用无烟的壁炉可以改善室内空气质量。

The factory installed smokeless chimneys to reduce pollution.

工厂安装了无烟的烟囱以减少污染。

Honda also will not allow use of smokeless tobacco.

本田汽车也不允许使用无烟的烟草.

Many of these are actually caused by other chemicals in cigarette smoke or in smokeless tobacco products.

大多数的病实际上都是由烟中的其他的化学物引起的或无烟的烟草产品引起的。

Put little balls of paper among the charcoal so as to make a good fire but wait until it is hot and smokeless before cooking .

把小的球状物的纸团放到木炭周围是为了较好的燃烧， 但是要一直等到木炭变红、变热和无烟的时候， 才能烧烤。

What Are Electronic Smokeless Cigarettes?

什么是依思瑞电子烟？

Smokeless fuel burns without producing smoke.

无烟燃料燃烧时不冒烟.