Beneath Ruth’s composure he sensed an uncharacteristic hardness

在露丝的平静下面他感到一种反常的严酷。

属类：综合句库--

That is why field geologists usually take a pocketknife which can be used to test minerals for hardness .

这就是为什么野外地质工作者通常携带一把小刀，利用小刀刻划矿物可以确定矿物的硬度以达到鉴定矿物的目的。

属类：工程技术-地质-矿物与矿产资源

The hardness and inhumanity of the man was fast breaking up

这人那冷酷无情的心情很快地消灭了。

属类：综合句库--

These unique properties are attributed to the significant increase in grain boundary area due to the small grain size. In terms of the mechanical properties, nanostructured metals have shown increases in hardness values (ultimate and yield strengths).

这些独特的性能归因于细小的晶粒尺寸致使晶粒边界区域有显著的增加。在机械性能方面，纳米结构金属显示硬度值增加(也反映在破断强度和屈服强度)。

属类：行业术语-检验检疫-

These mineral properties include the color, streak, luster, hardness , crystal form, specific gravity, cleavage, fracture and so on.

这些矿物的物理性质包括颜色、条痕、光泽、硬度、晶形、比重、解理、断口等等。

属类：工程技术-地质-矿物与矿产资源

These trees are noted for their straightness and hardness .

这些树的特点是树干挺直，木质坚硬。

属类：综合句库--

Among these physical properties are appearance, wear resistance, hardness or brittleness, residual stress, porosity, thickness, and deposit uniformity

这些物理性能有外观，抗磨损性，硬度或脆性，残余应力，孔?÷剩

属类：综合句库--

This process removes the water hardness

这一工艺去除水的硬度。

属类：综合句库--

One will have a good feeling when wearing a leather Belt with the quality of Both pliability and hardness .

这种韧硬兼顾的皮带，用起来感觉很好。

属类：综合句库--

Hardness test. The most common hardness tests are those in which an indenter is forced into the surface of the material under test.

最普遍的硬度测试是大多用一个压头压入被测试材料的表面。

属类：行业术语-检验检疫-