垂重多重结半导体器件（VMJ）有良好的近红外光电特性。
The vertical multijunction semiconductor device (VMJ) has a good infrared photoelectric characteristic.
分析了三轴转向架构架在有限元计算分析时，约束的施加必须保证三根轴的轴重一致性；分析比较了中间轴一系簧垂向刚度对构架强度产生的影响。
When establishing finite element calculation model of three-axle bogie frame, it must be certain that the weight of each of the three axles is equal while adding restraint.
垂向上生物降解程度是上轻下重，平面上为北轻南重、东轻西重。
Biodegradation levels of heavy oils become slight gradually from bottom to top in the oil column and from south to north, west to east in the research area.
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