spool的一般过去时怎么拼写

A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴.a spool of cotton一轴棉线a spool of thread一轴线...

spool的现在进行时为：spooling...

spool的音标：spool的英式发音音标为：[spu:l]spool的美式发音音标为：[spul]...

spool的现在完成时为：spooled...

spool的复数形式为：spools...

spool的第三人称单数（三单）为：spools...

A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。a spool of thread一轴线On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴....

n.线轴，线管，线轴状物，卷络的数量[长度]，缠线框vt.把…绕在卷轴上，缠绕...

“飘扬”的英语可以翻译为：wave，flutter，fly，dance，flaunt ...

serials的音标：serials的英式发音音标为：['sɪərɪəlz]serials的美式发音音标为：['sɪərɪrlz]...

pregnancies的音标：...

...a half-hearted apology...不诚挚的道歉I'm afraid I was rather bad-tempered yesterday; I think I owe you an apology.恐怕我昨天的脾气不怎么好, 我认为应该向你道歉。We received a letter of apology...我们收到了一封致歉信。Those right-wing people who most ho...

微量注射器...

n.单词，话语，诺言，消息vt.措辞，用词，用言语表达vi.讲话...

轴颈在轴承面上摩擦.The journal rubs against the bearing surface.夹紧处扭杆的微小滑移会产生干扰力矩,它的作用和轴颈的摩擦力矩一样.Torsional microslip at the clamps results in spurious torques which act like pivot friction torques.在发动机里, 机油被供应到旋转在其支承轴内的曲轴和凸轮轴轴颈上....

n.（用基尔良照相术摄制的）电子照相...

The main business of stockbroker is to help clients buy and sell shares.股票经纪人的主要业务是帮客户买卖股票。They inflated clients' medical treatment to defraud insurance companies...他们夸大客户伤势的严重性和治疗情形以欺骗保险公司。Stockbrokers direct stock...

重氮化合物...

n.舞会礼服，晚礼服。用于女性，面料较好。...

Do you know the legend of the Cowhand and Weaver Maid ?你知道牛郎和织女的传说吗？...

sphinx的音标：sphinx的英式发音音标为：[sfɪŋks]sphinx的美式发音音标为：[sfɪŋks]...

尼克松采取最放任的行动是在平静的时候, 而不是在对危机做出反应时.Nixon's most capricious cations had occured in times of quiet, not in reaction to crises....

A very clingy child can drive a parent to distraction.依赖性太强的孩子会逼得父母心烦意乱。He clutches your hip is made slight a circle to swing, you are clingy double leg.他抓紧你的臀部作轻微打圈摆动, 你则紧贴双腿.My mother said that I was a clingy child whe...