The question relates whether the operator of mechanical quantity can commute, but they don t form the causal relation.
结果表明 ，此问题取决于量子体系的状态 ，而与力学量算符可否对易问题有联系 ，但不构成因果关系 。
This paper discusses the form of mechanical quantity operator and state vector of quantum mechanics under momentum image and coordinate image.
文章通过讨论量子力学力学量算符和态矢量在动量表象和坐标表象下的形式。
This paper derives the relationship between the fundamental mechanical quantity in quantum mechanics and the generation element in symmetry transformation group.
从群的角度出发，导出了量子力学中的基本力学量与对称变换群中的生成元的关系式。
MEMS mechanical quantity sensor is of characteristics such as small volume, light weight and high output sensitivity, and it is especially suitable for study of real-time shape of ocean waves.
MEMS力学量传感器具有体积小、重量轻和输出灵敏度高等特点，特别适合于对海浪实时形态的研究。
The unified symmetry and conserved quantity of the holonomic mechanical systems with remainder coordinates are studied.
研究有多余坐标完整系统的对称性与守恒量。
The method of "mechanical sweeping lines" can be used for raising the surface quantity of aluminum profiles.
论述了提高铝型材表面质量的一种新途径-机械扫纹法。
The influences of blending ratios, EPDM's quantity, PP melt - extruded grafting copolymers, unsaturated polar monomers and plasticizer on the mechanical properties of the blends were investigated.
考察了共混比、不饱和极性单体、PP熔体挤出接枝物、增塑剂及EPDM用量对共混物力学性能的影响。
It adopts the mechanical valve to control the quantity of steam of steam with the long life, the more comfortable handle, the long-wait button.
采用机械阀门控制蒸气量，寿命长，手柄更舒适，长寿命按钮电源开关。
Check up mechanical material& equipment to be site& check up monthly quantity of construction progress.
检查工地材料机械设备，核对月进度工程量。
Responsibility: Mechanical equipment selection, confirm specific specification and quantity according to the drawing;
工作职责：机械设备的选型并根据图纸确定具体规格和数量；
It adopts the mechanical valve to control the quantity fo steam with the ong life, the more comfortable handle, the long-wait button.
采用机械阀门控制蒸汽量，寿命长，手柄更舒适，长寿命按钮电源开关。
It adopts the mechanical valve to control the quantity fo steam with the ong life, the more comfortable handle, the long-wait button.
采用机械阀门控制蒸汽量，寿命长，手柄更舒适，长寿命按钮电源开关。
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