求翻译：刚体静力学，内容包括力的特性与基本力系的简化、空间任意力系的简化和约束的基本类型、力系的平衡条件与构架的组成规律、滑动摩擦与滚动摩阻、静定杆系的内力是什么意思？

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hydrostatic power involves deformations and include the characteristics and basic power systems, space of arbitrary power systems simplify the simplification and bound by basic types of conditions of balance, power systems and structure composed of laws, sliding friction and rolling Moses deterrent,

The statics of rigid body, the content including the strength characteristic and the basic system of forces simplification, the spatial random system of forces simplification and the restraint basic type, the system of forces equilibrium condition and the skeleton composition rule, the sliding frict

Statics of rigid bodies, including simplified, space characteristics and fundamental forces of arbitrary force system of simplified base type, and constraint conditions for balanced force system and frame composition law, sliding and rolling friction, static linkage of internal forces

Statics of rigid bodies, including simplified, space characteristics and fundamental forces of arbitrary force system of simplified base type, and constraint conditions for balanced force system and frame composition law, sliding and rolling friction, static linkage of internal forces