一类几何不等式的一个结果_唐山师范学院学报_2011-5_91阅读网杂志文章阅读 关键词： 三角形；内部点；锐角；不等式 [gap=435]Key Words: triangle; interior point; acute-angle; inequality
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acute angle handpiece 锐角机头 ; 弯机头
Acute Angle PC 三角形主机
Primary acute angle-closure 原发性急性闭角型
Acute Angle Constraint 锐角限制规则
acute angle [数] 锐角
In these kinds of Ni-based alloys,big brittle macroscopic inclusions have the huge impact on the properties of alloys,especially the composite inclusions composed of Ti、Al、Fe in 4J43 alloy and Cr20Ni80 alloy. This kind of impurity is mainly titanic oxides or nitrides generated by oxidizing of titanium in smelting which exhibits abnormal acute angle with size of 20-300μm and higher rigidity,belonging to brittle impurity with low strain rate.
其中,大尺寸的脆性宏观夹杂物对合金的性能影响最大,尤其是4J43和Cr20Ni80合金中由Ti、Al、Fe组成的复合夹杂物,这类夹杂物主要是熔炼中钛脱氧产生的钛的氧化物或氮化物,多以锐角规则形貌出现,尺寸在20-300μm,变形率低、并具有较高的硬度。
参考来源 - 镍基合金中非金属夹杂物及其去除技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The upper Radiant Heating surface is covered with a very fine multi-faceted acute-angle silicon surface manufactured in New Mexico.
上部辐射采暖表面覆盖着一个非常精细的多面性急性角在新墨西哥州生产硅表面。
The ramp sits at an acute Angle to deflect the intake airstream from the longitudinal direction.
这个斜面锐角使进气口的气流纵向流变。
The ramp sits at an acute Angle to deflect the intake air stream from the longitudinal direction.
这个斜面锐角使进气口的气流纵向流变。
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