First, {104} plane of calcite crystallite containing screw dislocation is simulated by HyperChem according to growth shape of calcite.
首先,根据方解石晶体生长形貌,通过分子模拟软件生成有螺旋位错的方解石{104}面,同时基于半经验分子轨道理论,对离解后的HEDP结构优化以获得其部分电荷分布。
By observing the {100} faces morphology of DKDP crystal grown in all three dimensions with atom force microscope,screw dislocations were found.
采用原子力显微镜观测全方位生长的DKDP晶体的{100}面形貌,发现有螺旋位错,由此推断DKDP晶体{100}面以螺旋位错机制生长;利用同步辐射X射线白光形貌术观测了DKDP晶体缺陷,探讨了不同生长条件及生长阶段对晶体完整性的影响。
On the crystal surfaces of the beryl crystal at ｛0001｝,｛1010｝,｛1121｝ occur universally screw dislocation,constriction screw dislocation,stacking fault,and contact twin that serve as the major step like source for the growth of beryl crystal.
在绿柱石晶体的 { 0 0 0 1}、{ 10 10 }、{ 112 1}面上 ,普遍发育螺旋位错、束合螺旋位错、层错及接触双晶 ,它们共同构成了绿柱石晶体生长的主要台阶源。
A trajectory generation of robot based on displacement screw and Chasles theory is proposed in this paper.
提出了基于位移螺旋与Chasles定理的机器人轨迹规划方法,这种轨迹的规划方法,可以兼顾关节空间和笛卡尔空间轨迹规划的各自不同的优点,适应于不同的串、并联机器人,既简单又直观。
screw dislocation
螺旋位错 -晶格缺损
cross helical gear
螺旋齿轮, 交错斜齿轮
indexable endmill with spiral teeth
可转位螺旋齿立铣刀
Generation of Optical Vortices With Intensity Modulation Via Advanced Sprial Phase Plate;
利用改进的螺旋相位板产生强度调制光学涡旋
As the DNA made copies of itself there would have been occasional errors in the order of the nucleic acids along the spiral.
DNA自我复制时，偶尔会在核酸的螺旋序列上出错。
Twisting arises in boards through the presence of spiral or interlocking grain.
翘曲多发生在螺旋或交错纹理的板材中。
Lack of fat renal angiomyolipoma of renal cell carcinoma and small spiral CT differential diagnosis
乏脂肪肾错构瘤与小肾癌的螺旋CT诊断鉴别
The Triaxial Magnetic Flux Leakage Signal Analysis of Spiral Weld Roof Topping and Hi-Low Defects
螺旋焊缝噘嘴错边缺陷三轴漏磁信号分析
Research on Indexable Form Disc Tools for Helicoidal Workpieces
加工螺旋槽用可转位盘铣刀设计研究
Application of Spirial CT in Location with Maxilly Impacted Teeth
螺旋CT在上颌埋伏牙定位中的应用
Coronal MPR of 64-slice spiral CT in investigation of the cause of bowel obstruction
64层螺旋CT冠状位MPR诊断肠梗阻病因
A new type of magmatic rock orientation mechanism:screw upwelling
岩浆岩定位机制的新类型——螺旋上冲
spiral part of a screw
（螺钉的）螺旋部分.
helical gear with helix angle
带螺旋角的螺旋齿轮
paranemic spiral
平行螺旋，反向双股螺旋
helical curve [ line ]
螺旋曲线螺旋(取向)照相
fixed pitch propeller
定螺距螺旋桨固定螺距螺旋桨
Atomistic Study of Interaction between Screw Dislocation and Vacancy Cluster Platelet in α-Zirconium
α锆中螺形位错与空位盘的相互作用模拟