他的大部分时间都耗费在了地方官的职务上，科学研究只是他的业馀爱好。
一件授予专利的发明，应满足新颖性、实用性和创造性要求。
授予专利权的发明和实用新型，应当具备新颖性、创造性和实用性。
实用性，是指该发明或者实用新型能够制造或者使用，并且能够产生积极效果。
该程序实用性强，为今后进一步设计该类剪断机提供了新的方法。
1·Practical applicability means that the invention or utility model can be made or used and can produce effective results.
实用性，是指该发明或者实用新型能够制造或者使用，并且能够产生积极效果。
2·Any invention or utility model for which patent right may be granted must possess novelty, inventiveness and practical applicability.
授予专利权的发明和实用新型，应当具备新颖性、创造性和实用性。
3·Novelty, practical applicability and inventiveness is the substantive requirement to the patentable invention-creation prescribed by the patent law.
新颖性、实用性和创造性是专利法规定的发明创造获得专利权的实质条件。
4·The feasibility and practical applicability were expounded and proved.
并就其可行性和实用性加以论证。
5·Simulation results indicate that the optical orthogonal code block constructed by this method has fairly large code capacity and good relativity, and has a certain practical applicability.
结果表明，此方法构造的光正交码码组具有较大的码容量和良好的相关特性，有一定的实用性。