Research on grouting repair technique for grain cracks of solid rocket motor;
固体火箭发动机药柱裂纹灌浆修补技术研究
Based on the obtained solution, a method to calculate the bending center and the stress intensity factors of the cracked cylinger whose cross section is not thin_walled, but of small torsion rigidity is proposed.
使用单裂纹解及调和函数的常规解 ,裂纹柱受横向力作用而引起的Saint_Venant弯曲问题 ,被归为解两组积分方程 ,并获得了一般解· 在此基础上 ,对横截面不为薄壁但扭转刚度很小的裂纹柱 ,提出了一种计算弯曲中心和应力强度因子的方法 ,给出了一些数值算
The grains on spear likes the national grains of fresco of Guangxi Flower Mountain.
矛上的回纹铭很象广西花山壁画上的民族纹饰。
Ornamental work consisting of three-dimensional frets; geometric openwork.
回纹细工饰带有三维回纹饰的装饰物；几何形浮雕细工
The book, fallen, sprawled against the bulge of the orange-keyed chamberpot.
书果然掉下去了,摊开来靠在布满回纹的尿盆肚上。
The Greek fret or key pattern, used in art and architecture.
桥，柱希腊的回纹装饰和拱顶石装饰，用于艺术和建筑
inside screw lift check valve
内螺纹升降式止回阀
notchedunderlated preheater
凹槽波纹板回转式空气预热器
Marine bronze male thread stop and check valves
GB/T596-1983船用外螺纹青铜截止止回阀
Marine forged steel male thread stop and check valves
GB/T1241-1983船用外螺纹锻钢截止止回阀
Marine bronze male thread lift check valves
GB/T597-1983船用外螺纹青铜止回阀
Low pressure bronze male screw-thread check valve for marine use
GB/T1952-1980船用低压外螺纹青铜止回阀
SFT Based on Scale Invariant Feature
基于尺度不变特征的从纹理回复形状
Studies on the Fingerprint of Le Mahui Injection and Yu Jin Injection;
勒马回注射液指纹图谱研究及鱼金注射液指纹图谱研究
Marine low pressure bronze male threaded stop check valves
GB/T1953-1984船用低压外螺纹青铜截止止回阀
Establishment and Security Evaluation of Crack Model on Cement Rotary Kiln
水泥回转窑筒体裂纹模型的建立和安全评定
Activated, regenerate and recombine skin cells, restore skin elasticity, reduce line cracks and wrinkle, invigorate your skin with youthful vigor.
激活、再生、重组肌肤细胞，恢复皮肤弹性，减少细纹和皱纹，回复肌肤年轻活力。
This paper introduces the influence on the sensitometric characteristic of film caused by rewind processor, namely bar-marks, streamers and inconsistent contrast.
本文介绍回转显影仪对胶片感光特性的影响，即挤压条纹，溪流条纹和反差不均匀性。
In less than a year since his return from abroad, he had acquired more wrinkles on his forehead, and since he hadn't slept well the night before, his complexion and eyes were dull and lusterless.
回国不到一年，额上添了许多皱纹，昨天没睡好，脸色眼神都萎靡黯淡。
Even so, we can hear echolocation clicks from some bats, such as the spotted bats.
即使这样，我们也能听到一些蝙蝠发出的回声定位声，比如斑纹蝙蝠。