目前水闸工程结构设计所采用的设计准则仍为单一安全系数法，该方法不能定量、科学地反映水闸工程的可靠性。
Single safety coefficient method is still the design criterion of sluice engineering structure presently, but will not present reliability of sluice in a quantitative and scientific way.
提出的设计数据如安全系数、许用应力均根据生产实践的应用所确定。
Some datum, for example safety factor and allowable stress are put forward based on production practice.
为了设计和操作效能和安全系数都极高的船舰，造船设计师和工程师们必须掌握此领域的先进知识。
Naval architects and naval engineers gain advanced knowledge of this field in order to design and operate naval vessels with maximum efficiency and safety.
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