We shall have to bridge over the stream with these boards of wood.

He made a few repairs to the stairs where some boards had come loose.

他把楼梯上几块已松动的木板予以修理.

Nail the boards onto the fence posts; they will make a good fence.

把这些木板钉在围墙柱子上, 这样围墙就牢固了.

We split the boards down the middle to use them for the back of the shelves.

我们把木板从中间锯开，用作架子的背板。

Check that the boards are all securely fixed.

检查一下是不是所有木板都钉牢了.

Mr. Smith has a bedroom in our house but boards out.

史密斯先生住在我们家里,但他在别的地方吃饭.

They knocked together two rough mailboxes with wooden boards.

他们用木板草草地做成了两个粗糙的信箱.

He had ripped up the carpet, leaving only the bare boards.

他用力扯去了地毯，只剩下裸露的地板。

Election boards will count the ballots by hand.

选举委员会将人工计票。

Most supervisory boards meet only twice a year.

大多数监事会一年只开两次会议。

The floor was draughty bare boards.

地面铺的是透气性好的实木地板。

Bulletin boards charted each executive's progress.

公告牌显示了每个主管人员的工作进展情况。

She has posted photographs on bulletin boards.

她已把照片贴在了公告牌上。

Try browsing around in the network bulletin boards.

试着在网络论坛上浏览信息。

Use separate chopping boards for raw meats, cooked meats, vegetables and salads.

切生肉、熟肉、蔬菜和拌色拉的青菜时要使用不同的切菜板。

The results are cumbersome and the formulas in the general case cease to be useful.

其结果很繁而其公式在一般情况是不再有用的.

Substances which have identical molecular formulas but different strucural formulas, are known as isomers.

凡具相同分子式但不同结构式的物质称为异构体.

Nagative expander formulas started to include such items of wood, as wood dust or wood flour.

负极板膨胀剂配方开始包括木质一类的材料, 如木屑或木粉.

NaCl. In solving these problems you must apply the formulas you have just learned.

你必须运用刚学的公式来解这些问题.

We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.

用复数算术推导了正弦,余弦的加法公式.

These formulas make the approximations for the derivatives at these points in a nonsymmetrical manner.

这些公式使得这些点子上的导数近似式是非对称形式.