Influences of water interaction on the mechanical behaviour of porous chalks have been studied.

Simple teaching tools such as the blackboard, chalks and tape recorders have fallen behind the times.

简单的教学手段,如黑板 、 粉笔和录音机已经落后于时代.

His steed was by chalks the best.

他的马是最好的.

A white chalk chalks white on a black blackboard.

一根白色的粉笔在黑色的黑板上写白字.

Use it to clean chalky holds before and after you climb.

下个要爬的人会为此而感谢你的.

What did she see when she looked at the strange, chalky-skinned family that was universally avoided?

当她看到这群奇怪的, 有着苍白皮肤,被所有人避嫌的家族后,会有什么感想?

A complexion that had been pastelike was now chalky white.

曾经像浆糊一样的面容现在像白垩一样白.

It was sealed by a wall and contained chalky soil to the depth of one metre.

它被一堵墙密封著,仿如白垩时期的泥土深达一公尺.

When over applied, white, chalky deposits may appear after drying.

过度喷涂时, 干燥后会产生白色残留物.

Soil in the Champagne region is either chalky or a clay-chalk mixture.

香槟区的土壤为白垩土或陶土和白垩土混合两种.

Her face became a chalky white.

她的脸变得煞白。

Eurasian thistle growing in sand dunes and dry chalky soils.

在沙丘或干旱白垩土壤中生长的欧亚蓟.

Shallow burial seems to preserve chalky textured porosity.

浅埋藏似能保留具白垩状结构的孔隙.

Each animal has a chalky skeleton.

每个珊瑚虫有灰质的骨骼.

She turned chalky white.

她变得像白垩一样白.

The light outside had chilled, and threw a chalky whiteness on the river.

外面的光线暗了下来, 在河上投上一层石灰白.

To overcome these obstacles has always been and continues to be a major challenge to aviation.

怎样克服这些障碍,过去经常是,而且现在仍然是航空界的重要难题.

This high-quality face pack gives a proven challenge to wrinkles.

抗皱 防 皱面膜问世了,它向衰老,这一生命的现实宣告挑战.

He has flung down a challenge to his political rivals.

他已向其政敌提出挑战.

The crossing of this dangerous river was a challenge to most of us.

对我们大多数人来说,横渡这条充满危险的大河确实是个挑战.

The swimming team the challenge to and begins the fierce battle.

泳队的队员为了阻止惨剧延续,开始了壮烈的战斗.