The European Central Bank Not Able to Justify M3

The increase of 4 000 000 m3 in the reservoir capacity can increase 1%;

每增加400万m3的库容，即可提高1%的减沙效益；

The treatment capacity of one single purifier amounts to 2500 m3/ d.

单台设备处理能力达2500m3／d。

Among the three carriers, M3 composite carrier shows the best immobilization efficiency.

由此看出，M3型载体固定化漆酶效果较好。

The technology test of PVD is used on M3 hob.

对M3滚刀进行了物理气相沉积（PVD）工艺试验。

AIM: To raise monoclonal antibody against human m3 receptor.

目的：制备抗人m3受体肽链的单克隆抗体。

190~ 220 million m3 of water was used in cropping system every year.

种植业系统年用水量约为1.9～2.2亿m~3。

"M3" Single Phase AC Electric Circuit Experiment Board

M3型单相交流电路实验板

08 m3 ecological water flowing into this region for five times;

08m3生态水分5次流向塔里木河下游地区。

Jack heard the doorbell ring, so he opened the door.

杰克听到门铃响，于是去开门。

Would you mind going downstairs and seeing who rang the doorbell?

你能不能下楼去看看是谁按的门铃？

I was reading my newspaper and I heard the doorbell ring.

读报时，我听到门铃响了。

One night, as he finished his last beer, the doorbell rang.

一天晚上，当他喝完了他最后的一瓶啤酒，门铃响了。

My family said they heard the doorbell.

我家人说他们听到了门铃。

I rang the doorbell, but no one came.

我按了，但是没有人来应门。

" Well, how do you think I rang the doorbell?"

“你想我是如何按响门铃的？”

He saw a small boy trying to reach the doorbell of a house.

他看到一个小男孩正伸手去够一户人家的门铃。

The design and implementation of voice communication of the wireless visual inter-conversation doorbell system

无线可视对讲门铃系统中语音通信的设计与实现

Deep in thought, he did not hear the doorbell ring.

他陷入沉思之中，没听见门铃响。

A Kind of Password Doorbell and Concurrently Design of the Alarm Circuit

一种密码门铃兼报警器电路的设计

If you visit him, you must ring his doorbell.

如果你来拜访他，你得按他的门铃。