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weld crack 焊接裂纹 hot crack 热裂纹 cold crack 冷裂纹 hydrogen – induced crack 氢致裂纹 delayed crack 延迟裂纹 lamellar tearing 层状撕裂 crater crack 弧坑裂纹 root crack 根部裂纹 reheat crack 再热裂纹 heat – effected zone crack 热影响区裂纹 intercrystalline crack 晶间裂纹 transverse crack 横裂纹 longitudinal crack 纵裂纹 toe crack 焊趾裂纹 mechanical property test 机械性能试验 test piece 试板 specimen 试样 side bend 侧弯 bending 弯曲 transverse tensile 横向拉伸 macro –etching specimen 宏观试样 micro –examination specimen 微观试样 fracture test 破断试验 crack test 抗裂试验 brittle fracture 脆性断裂 plastic fracture 塑性断裂 full penetration welding 全焊透 weld – pool 熔池 penetration 熔深 arc length 弧长 spray transfer 喷射过渡 short circuiting transfer 短路过渡 metal transfer 焊滴过渡 appearance of weld 焊缝成形 form factor of weld 焊缝成形系数 deposition coefficient 熔敷系数 deposition efficiency 熔敷效率 penetration ratio 熔合比 constant wire – feed system 等速送丝 alternate wire – feed system 变速送丝 static characteristic of arc 电弧静特性 dynamic characteristic of arc 电弧动特性 weld ability test 焊接性试验 welded construction 焊接结构 bead 焊道 layer 焊层 straight polarity 正接（正极性） reversed polarity 反接（反极性） position of welding 焊接位置 flat position welding 平焊 horizontal position welding 横焊 vertical position welding 立焊 overhead position welding 仰焊 vertical up welding 立向上焊 vertical down welding 立向下焊 welding by one side 单面焊 welding by both side 双面焊 ENGINE ROOM PART 机舱部分 Machines and equipment in engine room 一、机舱设备 Main engine (M.E) 主机 The Sump Tank of M.E 主机油底壳 Fly Wheel of M.E 主机飞轮 Piston 活塞 Generator engine (G.E) 发电机 Emergency Generator Engine 应急发电机 Auxiliary Engine (A.E) 辅机 Boiler 锅炉 The Composite Boiler 组合锅炉 The Safety Valve of Boiler 锅炉安全伐 Oil Burner Unit 燃烧器 Water Level Gauge 水位表 Water Level Controller 水位控制器 Excess Steam Pressure Control Valve 过理蒸汽调节伐 Steerage 舵机 Steering Room 舵机间 Steering – gear 舵机装置 Trick Wheel Plant 手操舵装置 Oil Cylinder 油缸 Pilot Power Unit 反馈装置 Rudder 舵 Rudder blade 舵叶 Rudder stock 舵杆 Rudder carrier 上舵承 Rudder pintle 舵销 Bush for rudder stock 舵杆衬套 Sleeve for rudder stock 舵杆轴承 Bush for rudder pintle 舵销衬套 Sle