... certificated officer 有证书的驾驶员 Certificates of Classification 船级证书 certification of fitness 合格证书 ...
基于20个网页-相关网页
The welders engaged in the welding shall be fully qualified and holding welding certificates from the classification society for the type of welding carried out.
从事的焊接的焊工应该有充分的资格和持有给焊接发证的船级社的证书。
youdao
应用推荐
模块上移
模块下移
不移动