The opening hatch cover method also not to be satisfied that using the warping head of cargo gear not through derrick boom open the hatch cover because using derrick boom is not safe.
开舱盖的方法不令人满意，起货设备传动轮弯头在开舱时不穿过吊杆，原因为使用吊杆不安全。
Please open the hatch cover of hold no. 4. (Please open all the hatch covers.)
请打开四舱舱盖。(或请把所有舱盖打开。)
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