久久精品无码中文字幕老司机丨国产精品自产拍在线观看花钱看丨亚洲日本丝袜丝袜办公室丨色综合久久久久久中文网丨国产一级淫片一区二区三区

  • Ship anti - fouling, the United States, new, Australia new regulations

    ?Introductionto Biofouling refers to biological pollution caused by the partial deposition of various aquatic organisms (microorganisms, plants, algae and animals) under the ship, which may lead to the invasion of foreign aquatic species into the local Marine environment. Even a small or slight amount of hull fouling can increase the drag on the hull and propeller in the water, which in turn affects fuel consumption (cost) and gas emissions. Therefore, in many cases, hull cleaning management can be regarded as an effective measure to improve ship performance and fuel efficiency.

    2018/08/14 qxp

Previous page12Next page Go to No.
主站蜘蛛池模板: 兴城市| 青铜峡市| 沙雅县| 柳江县| 明溪县| 米泉市| 比如县| 红桥区| 定兴县| 夏河县| 汉阴县| 余干县| 喀喇| 阿鲁科尔沁旗| 平谷区| 扎赉特旗| 麻城市| 密云县| 贡嘎县| 丘北县| 福泉市| 毕节市| 林西县| 新营市| 耒阳市| 富裕县| 宁陵县| 鄂尔多斯市| 广灵县| 威海市| 安泽县| 定南县| 宁都县| 剑河县| 比如县| 景泰县| 朔州市| 华容县| 宜君县| 南乐县| 尖扎县|