1. 可行性vs实用性 Practicable强调"可实施性"，指方案/方法在客观条件下的可行性 （例：The evacuation plan is practicable in 30 minutes 疏散方案30分钟内可行） Practical侧重"实用性"，强调在实际应用中的便利或有效 （例：This multi-tool is practical for camping 这款多功能工具很实用）
2. 客观条件vs主观价值 Practicable的 ...(以上内容有节略,please sign in for more)
That may be practiced or performed; capable of being done or accomplished with available means or resources; feasible; as, a practicable method; a practicable aim; a practicable good.
Capable of being used; passable; as, a practicable weapon; a practicable road.
Of or pertaining to practice or action.
Capable of being turned to use or account; useful, in distinction from ideal or theoretical; as, practical chemistry.
Evincing practice or skill; capable of applying knowledge to some useful end; as, a practical man; a practical mind.
Derived from practice; as, practical skill.
word-vs-word-cn
Practicable, 【practical】 are not close synonyms and not interchangeable, but they are sometimes confused when they imply a capacity for being used or turned to account.
Practicable (see also POSSIBLE 1 ) applies chiefly to something immaterial (as a plan, project, scheme, or design) which has not been tested in practice or to something material (as a new machine, a new form of entertainment, or a new implement) which has not been proved successful in operation or use.
【Practical】 applies not only to things both concrete and immaterial but also as practicable does not, to persons. The term in all of its senses stresses an opposition to what is theoretical, speculative, ideal, unrealistic, or imaginative and implies a relation to the actual life of man, his daily needs, or the conditions which must be met.
When the term also implies a capacity for use, it emphasizes actual usefulness rather than highly probable or merely discovered usableness; thus, a plan might be practicable in that it could be put into practice though not 【practical】 because inefficient, too costly, or superfluous; the modern low-slung high-speed automobile was practicable long before improved roads and fuels made it 【practical】 .
Hence, 【practical】 may apply to whatever is such in kind, character, amount, or effect that it is definitely useful or serviceable in actual life.
That may be practiced or performed; capable of being done or accomplished with available means or resources; feasible; as, a practicable method; a practicable aim; a practicable good.
Capable of being used; passable; as, a practicable weapon; a practicable road.
Of or pertaining to practice or action.
Capable of being turned to use or account; useful, in distinction from ideal or theoretical; as, practical chemistry.
Evincing practice or skill; capable of applying knowledge to some useful end; as, a practical man; a practical mind.
