A lifeboat is weight tested by lowering to near the waterand loading to capacity with weight evenly distributed. Itis then lowered into the water and released. This test mustbe done at least once every（）.
举一反三
- The Master of a cargo or tanker shall be responsible that each lifeboat，except those free-fall launched，is lowered to the water with crew and maneuvered at least once every（）.
- 6. _________on still water indicates how loading weight distribution affects on longitudinal strength.
- 词汇与结构 The weight and balance control system ______ the weighing of the aircraft, the maintaining of the weight and balance records, and the proper loading of the aircraft.
- The pillar shape that gives the greatest strength for the least weight is the（）.
- FCL means the loading reaches its allowable maximum weight or full measurement.