铍

Rotating three-faced beryllium mirror ; structural strength and deformation magnitude of surface ; modal analysis ; finite-element method

超高速摄影；三面体铍转镜；结构强度与镜面变形量；振动模态分析；有限元法

Beryllium-copper is Standard , bronze or stainless steel can be used also.

材料 Material 标材料为铍铜，也可用青铜或不锈钢

Silver electroplating of beryllium bronze with thiosulfate was used to replace conventional toxic silver plating with cyanide in accordance of the characteristics of the beryllium bronze .

从分析铍青铜材料的特殊性入手，针对性地采取有效的前处理工艺措施，以硫代硫酸盐镀银取代传统的有毒的氰化镀银，分析了银镀层变色的原因并提出了相应的抗变色处理措施。

The Beryllium Jacket's hand pockets stay accessible when you wear a harness, and an inner water bottle pocket keeps you hydrated on the ascent.

铍夹克的手时，口袋里住宿可利用你穿，和一个水壶口袋内使你水合的上升。

But beryllium costs $60 per pound, and its use has been largely confined to fields where such a price is not prohibitive: nuclear reactors, inertial guidance systems, and space vehicles.

但是铍每一磅值$60 ，而且它的使用已经是主要被限制到一个如此价格不是禁止的领域：核子反应炉，惯性航行系统和太空交通工具。

In the study on hyperfine structure,we computed the hyperfine interaction diagonal and off-diagonal constants of the 1s~22s2p~3P_(0.1)levels,and the effects of electron correlation and Breit interaction on these have been analysed.

在超精细结构的研究中，我们系统地计算了Z=20-83范围内24个类铍离子的ls~22s2p~3P_(0.1)态的超精细结构，得到了与其它理论和实验符合很好的结果，并分析了不同电子关联模型和Breit相互作用对超精细结构的影响。

If the walls are not as impeccable, you can have it finished with matte or eggshell and have the ceiling to reflect light instead.

如果墙壁不是如无缺点，您能安排它完成与铜铍或蛋壳和有反射的天花板光。

The anticlastic curvature caused by bending is 1700 times as long as the sagittal curvature, and the incident angle error is only 2.2 μrad. The Von Mize stress on the bender is about 806 MPa. When Beryllium-Cu is selected as the material of the bender, the linear relationship between the curvature of crystal in 0.57~1.72 m and the driving forces in 8~2.67 N is obtained.

优化后晶体因压弯产生的鞍形曲率半径约为弧矢曲率半径的1700倍，造成的人射角误差为2.2μrad；压弯装置上的最大平均应力约为800MPa，并由此确定了以铍青铜作为压弯机构的材料，晶体的曲率半径为0.57~1.72m和驱动力为8~2.67N时的线性关系。

F. Joliot was a member of the French Academy of Sciences and of the Academy of Medicine.

1930年，人们又发现，用α粒子轰击铍、锂、硼原子核，产生了一种神秘的穿透力很强的射线。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。