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- The results show that the fracture of ammonium perchlorate is essential to the growth of fracture and spalls behave in a brittle crack mode for a composite propellant. 结果表明,复合推进剂在动态压缩条件下主要表现为固体颗粒高氯酸铵的破碎,即首先在固体颗粒中产生微裂纹,在动加载下呈脆性断裂性质;
- Analysis of Brittle Crack on High Pressure Water Gun and Its Use 高压水枪脆性断裂分析及使用
- Experimental results show that surface roughness of Ra<10 nm may be obtained by use of dressed and trued wheel with wheel moving speed in less than 15 mm/min,and no brittle cracks on microscopic ground surface. 试验结果显示,先将砂轮修锐修整再控制砂轮行走速度小至15 mm/min时,表面粗糙度小于10 nm以下,且微观加工表面没有发生脆性破坏,形成镜面。
- Fracture law of an elliptical brittle crack under compressive loading 压应力下脆性椭圆型裂纹的断裂规律
- A little crack detracts from the value of the vase. 小小的裂痕减损那个花瓶的价值。
- The residual deleterious elements in steel lead to the products occurring red surface brittleness crack and temper brittleness,and lead to the hot strength of heat resistant steel decreasing. 钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向,并使耐热钢的热强性降低。
- The marchers jumped off at the crack of dawn. 行军队伍在破晓时出发了。
- Constant stress has made our nerves brittle. 我们长期处于紧张状态,神经已经吃不消了。
- This material is highly brittle. 这种材料非常脆。
- The riot police started to crack down on them. 防暴警察开始对他们采取镇压行动。
- You'll crack up if you go on working so hard. 你继续这样拚命干下去,身体会吃不消的。
- Robert received a brittle reception there. 罗伯特在那里受到冷淡的接待。
- Have another crack at solving this puzzle. 再试一试把这个难题解决了吧。
- She made a crack about his fatness. 她取笑他肥胖。
- There is a crack in this window. 这扇窗户上有个裂纹。
- She got up at the crack of dawn. 天刚亮她便起床了。
- Mary found knitting a hard nut to crack. 玛丽发现编织并非易事。
- He was the tough guy, the big shot, who gave orders with the crack of a whip. 他是个威风凛凛发号施令的强悍的家伙,是个大人物。
- I'd do anything to see you crack a smile. 为了博得你的一笑,我情愿做任何事。
- Her foot wedged in the narrow crack. 她的脚卡在那狭缝里了。