300HZ,600HZ
fc+300HZ,fc+600HZ
fc+1200HZ
fc+100HZ,fc+900HZ
第1题:
the eye of the second line is dipped
the mooring lines are doubled
the bollard has two horns
one of the lines is a breast line
第2题:
增加节流损失
降低效率
增加气蚀
降低轴功率
第3题:
placing bunker on the deck
building a stage on which to place the cargo
welding steel feet to the deck,on which the cargo is placed
erecting vertical pillars under the deck to support the cargo
第4题:
a+b
a+b+c
a+d
仅仅是b
第5题:
数字的上缘为准
数字的中间为准
数字的下缘为准
两相邻数字的中间为准
第6题:
Ⅰ~Ⅳ
Ⅱ~Ⅴ
Ⅰ~Ⅴ
Ⅰ、Ⅱ、Ⅳ、Ⅴ
第7题:
浮动底盘不能抬起
分离盘数量不足
补偿水断水
排油阀没开或开度太小
第8题:
右后
左前
右前
左前
第9题:
轴承径向力过大
磨损和漏泄增加
困油现象加重
电动机过载
第10题:
1min
2min
3min
4min