root n. 鲁特〔姓氏〕。 n. 1.(草木、毛发等的)根;根菜,食用菜根;根茎,地下茎;块根;有根植物,草木,草;〔pl.〕根菜类;(山)麓。 2.根本,根源,原因;本质;基础,根柢;【语言学】词根;根词;【数学】根数,根。 3.祖先;【圣经】子孙。 4.【音乐】和弦基音。 the root of a tooth 牙根。 the root of all evil 祸根。 the root of a gem 玉根〔毛玉的非玉部分〕。 a cubic [second, square] root 立方[平方]根。 at (the) root 根本上。 be at the root of 是…的根本[基础]。 by the root(s) 连根,从根部,从根源 (pull up by the roots 连根拔除,根除)。 get at [go to] the root of 追究…的根底,追查…的真相。 lay the axe to the root of 根本改革;治本。 root and branch 完全,都;彻底地,急进地。 strike at the root of 打击…的根部,彻底摧毁。 strike [take] root 生根;扎根;固定,固着。 to the root(s) 充分地;竭力地;彻底地。 vi.,vt. (使)生根;(使)固定;(使)固着;〔比喻〕深深种下,使根深蒂固。 Terror rooted him to the spot. 吓得他呆立不动。 root up [out] 连根拔除(杂草等);肃清(反叛等)。 adj. 根的;根本的。 a root idea 根本思想。 vt.,vi. (猪等)用鼻子掘(地);搜寻 (for)。 R-, hog, or die. 〔美国〕拚命干啊,不然就得饿死。 vi. 〔美俚〕应援,声援;支持,赞助;欢呼,喝彩。
Calculation of load capacity of bevel gears - calculation of tooth root strength 伞齿轮负载能力的计算.齿根强度的计算
A calculation research on the tooth root bending stress of asymmetrical involute gear 非对称渐开线齿轮齿根弯曲应力的计算分析
Calculation of load capacity of bevel gear - part 3 : calculation of tooth root strength 锥齿轮承载能力计算方法第3部分:齿根弯曲强度计算
Calculation of the bending fatigue strength at the tooth root of driving gears on reduction gear drives 减速齿轮传动中主动轮齿根弯曲疲劳的计算
The branch of dentistry that deals with diseases of the tooth root , dental pulp , and surrounding tissue 牙髓病学研究牙根、牙髓及其周围组织疾病的牙医学的一个分支
A dental implant is an artificial tooth root that a periodontist places into your jaw to hold a replacement tooth or bridge 种植牙是一种通过专科医生植入颌骨的人工牙根,用以镶复牙冠或牙桥
Considering the time - variant mesh stiffness , the calculated results demonstrated the change of tooth root bending stress in one engagement period 计算结果揭示了由于时变啮合刚度的影响齿根弯曲应力在一个啮合周期的变化规律。
Compared with a standard involute gear , the unsymmetric involute gear could efficiently improve the tooth root bending strength by finite element analysis 对实例的有限元分析表明非对称渐开线齿轮的齿根弯曲强度比对称齿轮有较大提高。
5 、 as adding the friction of the spiral bevel gear , the variety of the contact stress of teeth surface and the bending stress of teeth root vs the different meshing position are presented 5 、初步探讨了考虑干摩擦的情况下,螺旋锥齿轮副动态啮合过程中齿面接触应力及齿根弯曲应力随啮合位置变化的规律。
5 ) using the practical products , we have done experiments and comparisons on designing and generating tooth , testing the contact ratio , tooth root stress , vibration and noise for the high contact ratio spiral bevel gears 摘要5 )采用实验研究技术,结合实际产品,进行了高重合度弧齿锥齿轮的设计、切齿、重合度测试、齿根应力测量、振动和噪声测量等大量对比实验。