例句與造句

1. Taking the natural frequency arid the ratio of frequency drop as input characteristic parameters , crack damage in the cylindrical supporting shell of a portal crane is diagnosed and its length and position are forecasted , applying finite element emulation and artificial neural network technologies
   摘要應(yīng)用有限元仿真技術(shù)和人工神經(jīng)網(wǎng)絡(luò)模型，以反映結(jié)構(gòu)損傷程度的固有頻率和損傷的頻率下降率作為神經(jīng)網(wǎng)絡(luò)輸入的特徵參數(shù)，對(duì)門座起重機(jī)筒形支柱上出現(xiàn)的裂紋損傷長(zhǎng)度和位置進(jìn)行了綜合診斷和預(yù)測(cè)分析。
2. It's difficult to find supporting shell in a sentence. 用supporting shell造句挺難的