Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球宇宙飞船上!

We repaired the machine and it worked well ever after.

我们修好了机器, 从那以后它一直良好。

The aircraft’s behavior was satisfactory on its first test flight.

那架飞机在第一次试飞时情况令人满意。

The planets move around the sun in ellipses.

各行星围绕太阳按椭圆。

If the photocopier stops working just give it a clout.

如果那部影印机停止话就敲它一下。

These machines work on the same principle.

这些机器按样原理。

He is explaining how a machine operates.

他正在解释机器是如何。

The moving parts of this machine should be oiled regularly.

这部机器部件应该上油。

The worker oils the machine to operate it more efficiently.

工人给机器上油以使机器更有效。

This machine is not running correctly.

这台机器得不正常。

The system is working tolerably well.

这一系统得颇好。

Once installed, your laundry’s washer-extractors, drying tumblers and flatwork ironers aren’t going anywhere until you replace them.

洗衣房一旦安装好，你洗衣房里洗脱机、烘干机以及平烫机要到你更换它们为止。

The community cannot work without funds, but these should always be freewill offerings, not compul sory payments.

教会没有资金无法，但它们应该是自觉自愿奉献，不是强迫支付。

The machine kept running.

机器一直。

The machine is operating properly.

这台机器正常。

The motor usually operates well.

这台发动机通常良好。

The machine cycles automatically.

这台机器自动循环。

Is the equipment operational yet?

这套设备可投入了吗?

The engine went beautifully.

这台发动机得相当好。

Ultracentrifuge A high-speed centrifuge, operating at up to a million revolutions per second that is used to sediment protein and nucleic acid molecules.

一种高速离心设备，时速可达每秒百万，常用于沉淀分离蛋白质与核酸分子。