column n. 1.【建筑】圆柱;圆柱状物〔如烟柱〕。 2.【军事】纵队 (opp. line); 队;(舰队的)纵阵,纵列,舰列。 3.(报纸的)栏;【数学】(纵)行;【印刷】栏;【化学】塔。 4.【植物;植物学】雌雄合体的柱状花蕊。 5.〔美国〕(党派、候选人的)全体支持者。 6.(报纸上的)专栏(文章)。 the column of the nose 鼻梁。 spinal column 脊柱,脊梁。 advertisement [literary] column广告[文学]栏。 column of fours 四路纵队。 column of mercury [water] 水银[水]柱。 columns of smoke 烟柱。 in column of sections [platoons, companies] 【军事】按分队[小队,中队]编队。 in our [these] columns 〔报纸编者用语〕在本栏内,在本报上。 adj. -ed 图柱(状)的,有图柱的。
Having fluid columns inside a fixed width container makes the template very flexible . if we add width changer buttons , we only need to change one value 在可流动列内部嵌入一个固定宽度容器会增加延展性,如果我们加入改变宽度的按钮,我们只需要改变一个宽度值就成了。
In chapter three , in order to simulate the actual drilling fluid column pressure and to supply the extreme high pressure drilling circulating fluid for the device , the high pressure circulating fluid simulating system has been designed based on the experience of drilling fluid circulating system in the wellside . to purify the drilling fluid , the high pressure desander has been designed 第三章为模拟实际钻井的液柱压力,并为整个模拟钻井装置提供超高压循环钻井液,在借鉴了钻井现场的钻井液循环系统经验的基础上分析研究了钻井液高压循环系统,并配套设计了高压除砂器,以达到净化该系统中钻井液的要求。
Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield . the paper analysis the causes of hole undergauge , proposes preventive and treatment measures which are to optimize design from geologic structure features , to use suitable fluid column pressure , to select different drilling fluid types , to adopt advanced drilling technology and perfect field technical management . therefore , good economic benefit will be obtained 文摘:川东构造在钻探作业中因井眼缩径造成起下钻的阻卡时有发生,文中对造成井眼缩小的原因进行分析并划分为五类因素,提出应在地质构造特征方面优化设计,采用合适的液柱压力,选择不同的钻井液类型,使用先进的钻井工艺和完善现场技术管理等措施进行预防和处理,将取得重大的经济效益。