单选题考虑船体变脏后,船舶遇到恶劣气象、复杂海况及不同水域时船舶阻力增加,为了使船舶在各种航行条件下发动机不超负荷,在船上主机的服务功率比标定功率低,这种储备称()。A船舶功率储备B动力装置功率储备C发动机工作储备D船体工作储备
单选题
考虑船体变脏后,船舶遇到恶劣气象、复杂海况及不同水域时船舶阻力增加,为了使船舶在各种航行条件下发动机不超负荷,在船上主机的服务功率比标定功率低,这种储备称()。
A
船舶功率储备
B
动力装置功率储备
C
发动机工作储备
D
船体工作储备
参考解析
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