查询词典 hardness

Machinable bioactive glass-ceramics containing mica and fluorapatite were prepared byhigh-temperature melting. The glass-ceramics were analyzed by means of X-ray diffractometry, scanning electron microscopy with energy dispersive spectrometer and Fourier transform infrared reflection spectrometry. The bending strength, hardness and fracture toughness of the materials were measured.

摘 要：采用高温熔铸法制备可加工生物活性云母/氟磷灰石玻璃陶瓷；用X射线衍射、扫描电镜和傅里叶变换红外光谱分析等手段对材料的相组成和微观形貌进行研究，测定材料的抗弯强度、硬度和断裂韧性等力学性能；采用体外模拟体液浸泡法测试材料的生物活性。

Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.

因此本文的主要研究内容和结果如下：本文以某种直齿轮：模数m＝2，齿数z＝20，压力角α＝200，变位系数x＝0为对象，针对直齿轮精密塑性成形变形抗力大，流动性差，特别是成形中齿轮角隅部分更加难以充满问题，基于精密塑性成形技术、逐次控制原理以及连续局部变形原理提出了"直齿轮滚轧制坯－镦挤、胀挤复合精成形"的工艺方案，设计了滚轧制坯的模具结构和上下冲头带圆角的镦挤、胀挤复合精成形的模具结构。

Although ceramics may have good strength and hardness, their ductility, formability, and shock resistance are poor.

虽然陶瓷也许有好力量和坚硬，他们的延展性、formability，和震动抵抗是穷的。

Result,the hardness and friability of the prepared kelp chewable tablet.

结果 所制海带咀嚼片的硬度，脆碎度。

In this study, five kinds of oral cardiovascular products (including innovator's products and generic products) that are not subject to monitoring program established by the government, were evaluated for their thickness, hardness, friability, disintegration time, content uniformity and dissolution profiles as well.

中文摘要在本研究选择五种口服心血管药品，包含原厂产品及学名药品，探讨其锭剂之物化性质，如锭剂厚度、硬度、脆度及崩散时间等，及锭剂之含量均一度，并进行锭剂之溶离试验。

78X-2B four functions tablet tester is a new innovate designed production which have four functions including test tablet's hardness, friability, dissolution and disintegration.

78X-2B型片剂四用测定仪，是我公司开发的新产品，该仪器集药物片剂的硬度，脆碎度，溶出度和崩解度四种功能于一体。

There were no simple direct relation between the hardness, friability, disintegration time and the rate of dissolution. A 2 value greater than 50 indicates that the dissolution profiles of the generic product and the corresponding innovator's product are similar.

由本研究发现，锭剂之硬度及脆度与崩散时间之长短无规律之相关性；锭剂之硬度及脆度，与溶离速率之快慢，无规律之相关性；崩散时间之快慢，也与溶离速率之快慢无规律之相关性。

Model XHR-150 is used to for hardness test of plastics, hard rubbers, fricative materials, synthetic resins, Al-alloys, Sn-alloys hard papers.

产品用途： XHR-150型塑料洛氏硬度计适用于塑料、硬橡胶、摩擦材料、合成树脂、铝锡合金、硬纸板等材料的硬度测定。

Model OE-XHR-150 is used to for hardness test of plastics, hard rubbers, fricative materials, synthetic resins, Al-alloys, Sn-alloys hard papers.

产品用途： OE-XHR-150型塑料洛氏硬度计适用于塑料、硬橡胶、摩擦材料、合成树脂、铝锡合金、硬纸板等材料的硬度测定。

The mode of the friction saw cutting has been founded and the theory of that one has been put forward according to analysing the process of friction saw cutting, which make use of friction and extrusion to increase temperature of the area of work cutting and make the hardness and strength of work reduce obviously.

通过对摩擦锯切过程的分析，建立摩擦锯切模型，提出了摩擦锯切的原理，主要是利用挤压变形和摩擦，提高工件切削区的温度，使工件的强度和硬度显著下降，同时，设法保持刀具的温度在300℃以下，使硬度保持不变，从而实现了刀具硬度与工件硬度比的大量增加，完成超高速切削。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。