M5 alloy was a new zirconium alloy used in high burn up assembly such as fuel cladding, end plug, guide tube and grid spring and so on.
M 5合金是一种适用于高燃耗组件的新型锆合金，主要用作燃料棒包壳、端塞、导向管和定位格架材料。
2
This paper introduces many advantages about fhe focusing system witha grid electrode for DGS LLLTV camera tube.
本文通过计算结果叙述了DGS型微光摄象管移象段栅极调焦系统的多方面的优点；
3
This paper introduces a kind of current floating-board modulator for grid control traveling-wave tube transmitter, which can satisfy the requirement, discusses the design method.