A. 体积膨胀不足 B. 表面内凹 C. 内质气孔不匀 D. 表面色淡
A. 5 B. 10 C. 15 D. 20
A. shall be carried on deck B. shall be carried under deck C. may be carried on or under deck D. may not be carried on or under deck
A. 180Nm/1850-4900rpm B. 190Nm/1850-4900rpm C. 200Nm/1850-4900rpm D. 210Nm/1850-4900rpm
A. 正确 B. 错误