It shows that, at the low impact velocity (250 m/s), twin deformation is primary and slipping defor.
结果表明:在低速冲击下,HR2钢的变形是以孪生为主、滑移为辅的塑性变形,并未发生断裂;在高速冲击下,其变形是孪生和滑移的组合变形,断裂则是由沿晶界产生微孔洞、微裂纹并汇合形成大裂纹和少量穿晶断裂相混合引起的。
A theorem of twin power series and a group of twin identities are obtained.
设P,q为正整数,Lucas序列Un+2=PUn+1+q Un,U1=1,U2=p;Vn+2=PVn+1+q Vn,V0=2,V1=p,本文得到系数为Lucas数孪生幂级数定理与几组孪生恒等式。
This paper brought forward a pair of twin power series,that is,Fibonacci s power series ∑∞n=0f ~k_nx~nand Lucas s power series ∑∞n=0f ~k_nx~n,where fn is Fibonacci s number,ln is Lucas s number,k is positive integer.
笔者提出一对孪生幂级数,即Fibonacci幂级数∑∞n=0fnkxn与Lucas幂级数∑∞n=0lnkxn,这里fn为Fibonacci数,ln为Lucas数,k为正整数。
Influence of loading direction and strain rate on twinning of AZ31 magnesium alloy in plane-strain compression;
受力方式和变形速度对AZ31挤压板材平面应变过程中孪生的影响
Twinning of AZ31 magnesium alloy analyzed by EBSD technique;
AZ31镁合金孪生行为的EBSD研究
Artificial Induction of Twinning by an Active Immunization of Beef Cows Against Inhibin Partially Purified from Porcine Seminal Plasma;
应用猪精液抑制素主动免疫法诱导黄牛孪生
The results show that,when WC phase is as singlephase,it can generates twin-slip coordination deformation,thus the alloy exhibits high toughness,this high-plastic alloy is applicable for rock drilling.
同时对两种合金施加了一定的应变,研究了其滑移、孪生变形特性,结果表明,当WC为单一相时,WC相能产生孪生-滑移协调变形,从而具有较高的塑性。
The microstructure and twin deformation properties of WC phases were investigated by loading alloy specimen.
通过对硬质合金试样施加一定应力,使之产生应变,对其微观组织进行TEM分析,研究了孪生变形特性。
heterosexual twins
孪生兄妹, 孪生姐弟
method of co twin contro
孪生儿控制法孪生儿控制法
grow as twins, of crystals.
水晶像孪生一样生长。
I think they're the twins'.
我想是那对孪生姐妹的。
The twins were mistaken.
那对孪生子准搞错了。
She is Claire's twin sister.
她是克莱儿的孪生姊妹。
International Society for Twin Studies
国际孪生儿研究学会
Wisdom and goodness are twinborn.
智慧与善行孪生兄弟。
Ann is the double of her twin sister.
安酷似她的孪生姐姐。
It's difficult to distinguish one of these twins from the other
很难将这对孪生子分清。
Lisa was my twin sister.
丽莎是我的孪生姐妹。
TWINNING AND TWIN INTERSECTION IN AZ31 Mg ALLOY DURING WARM DEFORMATION
镁合金温变形过程中的孪生及孪晶交叉
Of the twin brothers, Tom is the elder by a few minutes.
这对孪生兄弟里，汤姆早出生了几分钟。
The twin boys are like two peas in a pod.
这对孪生兄弟长得一模一样。
You must be muddling me up with my twin brother.
你一定是把我看成我的孪生兄弟了.
The twin brothers are far apart in character.
那两个孪生兄弟的性格相差很远。
Although they are twins, temperamentally they are as different as chalk and cheese.
尽管他们是孪生儿，但性格各异。
The twin brothers bled for their country and died happily.
这对孪生兄弟为国流血牺牲, 死而无憾。