Industrial fans - determination of fan sound power levels under standardized laboratory conditions - part 2 : reverberant room method 工业用风扇.标准化实验室条件下风扇声功率级的测定.第2部分:混响室法
Do as you please , she always made more leeway than anything else , and turning round and round was the manoeuvre she was best at 无论你怎样划，它总是比其他船更好偏向下风方向，还来回打转，且精于此道。
Industrial fans - determination of fan sound power levels under standardized laboratory conditions - part 3 : enveloping surface methods 工业用风扇.标准化实验室条件下风扇声功率级的测定.第3部分:包络面法
Weaknesses : may find it tough against bigger and stronger opponents . other then that i don ' t see any other weaknesses 弱点：他在与比他更高大更强壮的对手对抗上可能会处于下风，除了这个我还没找出其他的弱点。
Surprisingly , a study shows that companies that only rely on their national language and the use of english are losing out in a big way 令人惊讶的是，一项研究表明，仅依赖其本国语言和英语的企业正明显落于下风。
Abstract : a model of self - excited ae rodynamic forces acting on a sectionof bridge deck with additional surface atta ched below the trailing edge is established 文摘:首先建立了下风侧附加翼板桥梁主梁截面的自激气动力模型。
Wind erosion - induced desertification not only influence the agricultural production of the region . but also threaten the entironmental quality of the leeward region 风蚀沙化不但影响风蚀地区农业生产，也威胁着下风地区环境安全。
