All loose or damaged polyethylene shall be trimmed back to sound coating prior to cleaning, and the edge of the polyethylene shall be bevelled at an Angle of 30 with the steel surface.

所有损坏的聚乙烯应在清洁之前对其涂层进行测深，且聚乙烯边缘应与钢材表面成30度角。

youdao

Usually, as they swim, they make clicking noises, and the resulting sound waves are reflected in an echo and travel back to them.

通常，当它们游泳时，会发出咔嚓的声音，所产生的声波会在回声中被反射回到它们身边。

youdao

He would have given worlds, now, to have that German lad back again with a sound mind.

现在，为了让那个德国小伙子恢复曾经健全的头脑，他愿意付出一切代价。

youdao

Then the snow's surface will help to send back sound waves.

VOA: special.2010.01.05

If things weren't working out by the end of the summer he'd fire me and I go back to Stanford for business school, that didn't sound too terrible.

如果不行的话，他就炒了我呗,我还可以会斯坦福继续读商科，这听起来又不会太差。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

Let me go back to the sound of this work.

再让我们看看这首诗的音律。

耶鲁公开课 - 现代诗歌课程节选

Unplug it and the Z-Base automatically switches back to TV sound.

ENGADGET: ZVOX intros three new Z-Base models, lowers the pricing soundbar

The bass reflex port is optimally positioned to ensure the twin woofers drive accurately and with synchronous timing, controlling back radiation and to help eliminate sound distortion.

ENGADGET: Sony reveals SS-AR2 loudspeaker, wants an invite to your next house party

Here's why Calexico can afford to kick back during sound check: Burns and his longtime musical partner, drummer John Convertino, have assembled a versatile crew of multi-instrumentalists and vocalists from their hometown of Tucson, as well as Madrid and Berlin.

NPR: Calexico Rings Alarm Bell On 'Carried To Dust'