opening n. 1. 开,开放;开始,着手;开端,开头;开场,开幕。 2.口,孔,缝,洞;空隙;通路。 3.空地,空场;〔美国〕林间空地。 4.(职位的)空缺;好机会 (for)。 5.【象棋】开局,头几着。 6.【律】辩护人的申办书。 7.【商业】开盘,交易开始时间。 adj. 开始的。 an opening address [speech] 开幕辞。 an opening ceremony 开会[开学、开幕、通车]典礼。 look out for an opening 谋事,找就业机会。
Study on the boundary shear stress in rectangular open channels 矩形明渠边界平均剪切应力变化规律研究
Asymptotic coupling algorithm for water depth and bed width of uniform flow in rectangular open channels 矩形明渠均匀流水深及底宽的渐近耦合算法
Operator - splitting method for calculating uniform flow depth s and bed widths of rectangular open channels 矩形明渠均匀流水深和底宽的算子分裂算法
Square files are used to enlarge square and rectangular openings , filings , slots , keyways and other similar purposes 主要是为了扩大方形和长方形、锉削、槽孔、键槽和其他相似的用途。
In this work we designed and produced an auto - scanning and data - acquisition apparatus of microwave imaging with rectangular open - aperture waveguide as the sensor 摘要采用矩形开口波导作为传感器,建立对成像样品板进行自动扫描控制和数据采集的微波成像装置。
Through the flume experimental research , the velocity distribution formulas for rectangular open channel have been found , including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile , the means of ascertaining correlative coefficient have been given in this paper 摘要通过对明渠流速的水槽试验研究,建立了矩形断面明渠沿垂线流速的抛物线分布公式和横向平均流速的乘幂函数分布公式,同时给出了相关系数的确定方法。