straight coupling的例句大全

In order to analyzing the vehicle-track coupling vibration character of infinite length track, a time-varying model of railway tangent track spatial vibration was presented. This paper gives out states, feature and causes of alternately rail side attrition in the straight line intervals of railway.

针对无限长轨道上车辆轨道耦合振动响应特性，建立了铁路直线轨道结构空间振动模型。对铁路直线地段出现的钢轨交替不均匀侧磨的形态、特征以及成因进行了分析。

selective coupling reactions of grignard reagents with acyl halides by copper complexes catalysis& synthesis of straight chain ketones

铜催化下格氏试剂与酰卤的选择性偶合&直链酮化合物的合成

aerospace series - pipe coupling 37 , spherical , in heat resisting steel - straight unions , threaded - inch series.

航空航天系列。耐热钢制球面37？管联接器。螺纹式直活管节。英制。

aerospace series - pipe coupling 37 o , spherical , in heat resisting steel - straight unions , threaded - inch series.

航空航天系列。耐热钢制37度球形管接头。螺纹直活管节。英制。

aerospace series - pipe coupling 37 ? spherical, in heat resisting steel - straight nipples, welded end - inch series

航空航天系列.耐热钢制球面37管联接器.端部焊接的直管接头.英制