It is so serious that immediate treatment is absolutely necessary. Please be quick!

This paper described a new system for recording, processing and analyzing heart sounds.

主要阐述了心音信号的意义, 介绍了传统心音听诊方面的缺点.

Operating Instruction of Computer Cardiophone.

电脑心音听诊仪使用说明.

He stopped to a breath and looked around at the world he was so familiar with.

他停下来歇息,观望起周围的沙坨.对这周围的世界他太熟悉了,熟悉每座沙包,每棵植物.

The entrance was blocked up with sand bags.

入口处用沙包堵没了.

The entrance to the building was blocked up with sand bags.

大楼的入口处被沙包堵住了.

A tiny red shrimp plies the sandy bottom near the pristine coral reefs of Cuba.

在古巴原始珊瑚礁附近,一只小小的红虾在海底的沙堆上辛勤的劳作.

This high speed of the sand and the house, it becomes the children's favorite.

这快与房子等高的沙堆, 就成了孩子们的最爱.

Sinking in the sand, he reached for his friend's hand, but it's too far away.

他陷在沙堆里, 于是伸手去抓他朋友的手, 可是离得太远了.

Yes, I can find shells in the sand.

是的, 我有在沙堆中找到贝壳.

Can you find shells in the sand?

你在沙堆中有找到贝壳 吗 ?

The children are playing around on the sands.

孩子们在沙堆上到处玩耍.

Stick our head in the sand like an ostrich?

我们能像鸵鸟那样把头埋在沙堆里,装作看不见 吗 ?

She kicked the sand up.

她踢起沙子.

Sand blew in our eyes.

沙子吹进了我们的眼睛里。

Let alone the brothers of her parents.

而况是父母的兄弟?

And he was seldom tactful in doing it.

何况他这样做拐弯抹角的.

Besides we got a good buy.

何况我们搞了一笔很合算的买卖.

And in a few years you'll have no bloody Hawaiians, either.

何况过不了几年你们也不会再剩下任何嗜血的夏威夷人了.

And some of them are so insolent.

何况他们中间有些人是那么粗野无礼.

The developmen of the self-destruction syringe and the safety syringe are presented.

报道了自毁式注射器和安全式注射器的产生及发展趋势.