查询词典 wear a beard

They may wonder what they should wear to Thanksgiving dinner but that's usually because they need an expandable garment for post-feast-relaxing, not because they want subliminally to reference their forefathers' wardrobes or foodstuff.

他们也许会琢磨，出席感恩节晚宴应该穿什么，但那通常是由于他们需要一件可伸展的衣服，以便在晚宴之后放松，而不是因为他们潜意识地希望提及祖先的服装或者食品。

The scale-type geometric wear-resistant structure surface is characterized in being made up of a base and the bionic geometric units on the surface. The bionic geometric structure unit is a scale-type structure distributed regularly on the surface of the base, and the distribution density is that: the ratio between the geometric projection area of the scale-type structure on the base surface and the surface area of the base formed by all the edge ends is 50-100%; the scale-type geometric structure unit has a symmetric hexagon shape on the surface; the sides L2/L1=1.0-2.0, L1: 1mm-50mm, and the internal angle Alpha is 120 degree -130 degree, the internal angle Beta is 100 degree -110 degree; the A-A section is subtriangular, and the B-B section is a trapezoid, the height H of the scale-type is 1-5mm.

本发明由基体和其表面上的仿生几何结构单元组成，仿生几何结构单元为在基体表面规律分布的鳞片型结构，鳞片型的分布密度为：其在基体表面上的几何投影面积之和与所有棱端围成的基体表面积之比为50-100％，鳞片型几何结构单元的表面形状为对称六边形结构：边长L2/L1＝1.0-2.0，L1：1mm-50mm，内角α为120°-130°，内角β为100°-110°，鳞片型的A-A截面为近似三角形，B-B截面为梯形，鳞片型的高度H为1-5mm。

High speed steel,ion sulfurization,nano structure,friction and wear behavior

中文关键词：高速钢，离子渗硫，纳米结构，摩擦磨损性能

Cr12MoV steel,nitriding,composite ion sulfurization,friction and wear behavior

Cr12MoV钢离子渗氮和硫、碳、氮复合共渗层摩擦学性能研究。

Sulfide layer was made on the surface of high speed steel (W6Mo5Cr4V2) by means of low temperature ion sulfurization. The tribological properties of the sulfide layer under dry sliding were investigated on an MM 200 friction and wear test rig. An atomic force microscope and a scanning electron microscope equipped with an energy dispersive spectrometer attachment were adopted to analyze the morphologies and compositions of the original and worn surfaces of the sulfide layer. The phase structure of the sulfide layer was determined by X ray diffraction.

采用低温离子渗硫工艺在 W6 Mo5 Cr4 V2高速钢表面制备了硫化物固体润滑层，在 MM- 2 0 0型摩擦磨损试验机上对渗硫层的摩擦学性能进行了干摩擦试验研究，用原子力显微镜及扫描电子显微镜和 X射线光电子能谱分析渗层表面、截面、磨面的形貌及成分，用 X射线衍射仪分析了渗硫层相结构。

The influence of the carbon amount and sulphidation on the fricton and wear of iron-base materials was investigated.

在HDM-10型端面摩擦磨损试验机上分别进行恒定载荷与变动载荷摩擦磨损试验，考察了含碳量及硫化处理对铁基粉末冶金材料摩擦磨损性能的影响。

Low temperature ion sulphuration,friction and wear,additives in lubricating oil

中文关键词：低温离子渗硫；摩擦磨损；润滑油添加剂

Low temperature ion sulphurization,sulfide layer,friction reducing effect,wear resistance

中文关键词：低温离子渗硫；渗硫层；减摩作用；耐磨性

Sulfide layers were made on the surface of AISI 1045 and SAE 52100 steels by means of low temperature ion sulphurization process. The tribological properties of the sulfide layers were investigated on an SRV reciprocating tester under dry and paraffin oil lubricated conditions. SEM equipped with EDAX and XRD were adopted to analyze the morphology and structure of the sulfide layers. The morphologies and composition of the wear scars were also analyzed.

采用低温离子渗硫技术在45＃钢和GCr15 钢表面形成渗硫层，用SRV 往复摩擦磨损试验机分别在干摩擦和液体石蜡润滑下对渗硫层的摩擦学性能进行了研究，用SEM、EDAX 和XRD研究了渗硫层的形貌和结构，并对磨痕的形貌及成分进行了分析。

Sometimes features as useful as a supercilium can "disappear" due to wear in early spring (and occasionally the entire tail is lost, too).

这只褐柳莺外观不寻常，乃是由於羽毛十分磨损，而且正在换羽中，有时候，一些像眉斑之类有用的特徵，在早春的时候会因为磨损而消失，偶尔连整个尾巴都会不见

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。