【正文】 follow the correct direction, grasp the limited goals, adhere to the party39。在各種各樣有用的齒輪類(lèi)型基礎(chǔ)上，輸入軸和輸出軸需要在一直線(xiàn)上或需要互相平行都不受什么限制。關(guān)于桿件數(shù)目和自由度的考慮通常被認(rèn)為是類(lèi)型綜合中被稱(chēng)作為數(shù)量綜合的一個(gè)分支領(lǐng)域。已知一個(gè)機(jī)構(gòu)，其構(gòu)成的運(yùn)動(dòng)特性將由運(yùn)動(dòng)學(xué)分析來(lái)確定。衡量連桿機(jī)構(gòu)傳遞運(yùn)動(dòng)能力的矩陣基礎(chǔ)的定義已經(jīng)研究出來(lái)。它意味著運(yùn)轉(zhuǎn)平穩(wěn)，其中能在輸出構(gòu)件中產(chǎn)生一個(gè)力或扭矩的最大分力是有效的。曲柄搖桿機(jī)構(gòu)的輸入構(gòu)件，曲柄可旋轉(zhuǎn)通過(guò) 360176。 a structure does not. Since linkages make simple mechanisms and can be designed to perform plex tasks, such as nonlinear motion and force transmission, they will receive much attention in mechanism study. （ 機(jī)構(gòu)或連桿構(gòu)件是一個(gè)可約束的傳動(dòng)鏈而且是一個(gè)從輸入到輸出以傳遞運(yùn)動(dòng)和（或）力為目的的機(jī)械裝置。 21. Machines using multipoint cutting tools include: (1) drilling machines, (2) milling machines, (3) broaching machines, (4) sawing machines, (5) gearcutting machines. 使用多刃切削刀具的機(jī)床包括： (1)鉆床， (2)銑床， (3)拉床， (4)鋸床， (5)齒輪切削機(jī)床。 10. The term antifriction bearing is used to describe that class of bearing in which the main load is transferred through elements in rolling contact rather than in sliding contact. 減摩軸承這個(gè)詞被用于描述這樣一類(lèi)軸承，其主要載荷是通過(guò)滾動(dòng)接觸而不是滑動(dòng)接觸的元件傳遞的． 11. It is this gradual engagement of the teeth and the smooth transfer of load from one tooth to another, which give helical gears the ability to transmit heavy loads at high speeds． 正是螺旋齒輪，從一個(gè)齒到另一個(gè)齒的逐漸嚙合和載荷的平穩(wěn)傳遞，給了螺旋齒輪在高速下傳遞重載荷的能力． 12. A shaft is a rotating or stationary member, usually of circular cross section, having mounted upon it such elements as gears, pulleys, flywheels, cranks, sprockets, and other powertransmission elements. 軸是一個(gè)固定或轉(zhuǎn)動(dòng)的零件，通常是圓截面的，在它上面安裝了如齒輪，帶輪，飛輪，曲柄，鏈輪等零件和其他動(dòng)力傳遞零件． 13. Roughing, for which the metal removal rate, and consequently the cutting force, is high, but the required dimensional accuracy relatively low. 粗加工，通常金屬切削率和切削力高，但所要求的尺寸精度相對(duì)低。 2. In the case of a disk cam with a radial (inline) translating roller follower the smallest circle that can be drawn tangent to the cam surface and concentric with the camshaft is the base circle. 對(duì)于一個(gè)對(duì)心直動(dòng)滾子從動(dòng)件盤(pán)形凸輪，可畫(huà)出的與凸輪表面相切且與輪軸同心的最小圓是基圓 譯文 P40 [1] 3. Numerous applications in automatic machinery require intermittent motion. A typical example will call for a risedwellreturn and perhaps another dwell period of a specified number of degrees each, together with a required follower displacement measured in centimeters or degrees. 在自動(dòng)化機(jī)械中的許多應(yīng)用需要間歇運(yùn)動(dòng)。 41. the external tensile load 外部拉伸載荷 42. the external shear load 外部剪切負(fù)荷 43. The singlerow deepgroove bearing 單列深溝軸承 44. The angularcontact bearing 角接觸軸承 45. the selfaligning bearings 自動(dòng)調(diào)心軸承 46. the straight roller bearings 直滾子軸承 47. the sphericalroller thrust bearing 球形輥止推軸承 48. the tapered roller bearings 圓錐滾子軸承 49. the condition of statical equilibrium 淺析條件下平衡 50. the positivecontact clutches 強(qiáng)制接觸離合器 51. the overloadrelease clutches 超載釋放保護(hù)離合器 52. the overrunning clutches 超越離合器 53. the magic fluid clutches 磁流變離合器 54. the metal removal rate 金屬去除率 55. the universal threadgrinding machine 通用螺紋磨床 56. the straightness of machine tool slideways 機(jī)床工具導(dǎo)軌的直線(xiàn)度 57. The adhesive property of oil 潤(rùn)滑油的粘度 58. the singlepoint cutting tools 單點(diǎn)切削工具 59. the multipoint cutting tools 多點(diǎn)切削工具 60. the randompoint cutting tool 任意點(diǎn)切削工具 61. tracing and duplicating lathes 仿形車(chē)床 62. singlespindle automatic lathes 單軸自動(dòng)車(chē)床 63. multispindle automatic lathes 多軸自動(dòng)車(chē)床 64. the gearcutting machine 齒輪切削機(jī)床 65. the special metal removal methods 特種加工 66. the electrical discharge machining 電火花加工 67. the operating mechanisms of the shaper 牛頭刨床的操作機(jī)構(gòu) 68. the mechanically driven shaper 機(jī)械傳動(dòng)牛頭刨床 69. the infinitely variable cutting speeds 平滑調(diào)整切削速度 70. the upright drilling machines 立式鉆床 71. the radial drilling machines 搖臂鉆床 72. the plain radial drilling machines 平面 搖臂鉆床 73. the multispindle drilling machine 多軸鉆床 74. the telescoping splined shaft 花鍵軸的伸縮 75. an knee and column type of milling machine 銑床的升降臺(tái)式 76. Fixedbed milling machines 固定床銑床 77. the hardened tool steel 淬硬工具鋼 78. a cylindrical grinding machine 外圓磨床 79. the new materialremoval methods 新型材料去除工 藝 四．翻譯下列句子 1. The simplest closedloop linkage is the fourbar linkage, which has three moving links (plus one fixed link) and four pin joints.（ 最簡(jiǎn)單的封閉式的連桿機(jī)構(gòu)就是四桿機(jī)構(gòu)，四桿機(jī)構(gòu)有三個(gè)運(yùn)動(dòng)構(gòu)件（加上一個(gè)固定構(gòu)件）并且有四個(gè)銷(xiāo)軸。 ） 5. Kinematic inversion is the process of fixing different links of a chain to create different mechanisms.（這個(gè)過(guò)程的動(dòng)態(tài)反演是固定的 ,不同的連接創(chuàng)造出不同的機(jī)制 。 7. Methods of joining parts are extremely important in the engineering of a quality design, and it is necessary to have a thorough understanding of the performance of fasteners and joints under all conditions of use and design. 在質(zhì)量設(shè)計(jì)工程中，聯(lián)結(jié)零部件的方法非常重要，因此，徹底了解緊固零件和聯(lián)結(jié)零件在所有使用和設(shè)計(jì)條件下的性能是非常必要的。 18. The important difference between the two is that area contact exists between the teeth of doubleenveloping gears while only line contact between those of singleenveloping gears. 這兩者之間的重要區(qū)別是：在雙包圍蝸輪組的輪齒間有面接觸，而在單包圍蝸輪組的輪齒間只有線(xiàn)接觸。如果構(gòu)件中的某一構(gòu)件被固定而使任何其他一個(gè)構(gòu)件運(yùn)動(dòng)到新的位置將會(huì)引起其他各個(gè)構(gòu)件也運(yùn)動(dòng)到確定的預(yù)期的位置上的話(huà)，該系統(tǒng)裝置就是一個(gè)可約束的運(yùn)動(dòng)鏈。它們?cè)跈C(jī)構(gòu)學(xué)研究中將受到更多的關(guān)注。 ） 4. Besides having knowledge of the extent of the rotations of the links, it would be useful to have a measure of how well a mechanism might run before actually building it. Hartenberg mentions that run is a term that means effectiveness with which motion is imparted to the output link。 可發(fā)生在特殊位置上。當(dāng)考慮受力時(shí)，要提出動(dòng)力學(xué)方面的問(wèn)題，軸承的荷載、應(yīng)力、潤(rùn)滑等類(lèi)似的問(wèn)題，而較大的問(wèn)題是機(jī)器結(jié)構(gòu)問(wèn)題。這樣運(yùn)動(dòng)綜合涉及到為給定性能的機(jī)構(gòu)的系統(tǒng)設(shè)計(jì)。齒輪從一根回轉(zhuǎn)軸到另一回轉(zhuǎn)軸傳遞運(yùn)動(dòng)或傳遞運(yùn)動(dòng)到一傳動(dòng)齒條。 the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party。s eighteen years prehensive strictly practice. (a) revised two regulations of th。 機(jī)械制造專(zhuān)業(yè)英語(yǔ)縮寫(xiě) AC=alternative current 交流 AGV=Automated Guided Vehicle 自動(dòng)導(dǎo)引小車(chē) AGVS= Automated Guided Vehicle System 自動(dòng)導(dǎo)引小車(chē)系統(tǒng) AMT=advanced manufacturing technology 先進(jìn)制造技術(shù) ANSI=American National Standards Institute 美國(guó)國(guó)家標(biāo)準(zhǔn)協(xié)會(huì) APT=Automatically Programmed Tools 自動(dòng)數(shù) 控程序 BOM=Bill of Materia