Metallic materials - tensile testing in liquid helium 金属材料.液态氦中的抗拉试验
Test method for tension testing of structural alloys in liquid helium 液态氦中结构合金的抗拉强度测试方法
However , materials must be suitable for use at the extremely low temperatures of liquid helium 材料必须适用于液态氦的极低的温度。
It would not make sense to inject that much power into one point of the grid , and liquid helium is a cumbersome coolant 在电力网的某个点,输入那麽大的电力没什麽意义,液态氦这种冷却剂也不容易处理。
They applied about 26 atmospheres of pressure to liquid helium , forcing the atoms to lock in place and thereby form a fixed lattice 他们对液态氦施加约26倍大气压力,使原子固定在位置上,形成固定的晶格。