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  • 2025/5/4 11:09:51

1. ÎÒÃÇ¿ÉÒ԰ѸÖÔٴμÓÈȵ½ÁÙ½çζÈÒÔϵÄijһζȣ¬È»ºóÔÚÂýÂýÈÃÆäÀäÈ´¡£ We can heat the steel again to a temperature below the critical temperature, then cool it slowly.

2.ÎÞÂÛÈκμòµ¥µÄ»ú´²£¬¶¼ÊÇÓɵ¥Ò»Ôª¼þ¼´Í¨³ÆÎª»úеÁã¼þ»ò²¿¼þ×é³ÉµÄ¡£ However simple, any machine is a combination of individual components generally referred to as machine elements or parts. 3.ÕâЩ½ðÊô²»¶¼ÊǺõĵ¼Ìå¡£

All these metals are not good conductors. 4. ÔÚ×ö´øµçʵÑéµÄʱºò£¬ÔÙÔõôСÐͼ²»Îª¹ý¡£

You can't be too careful in performing an experiment. 5.ÀûÓ÷¢µç»ú¿ÉÒÔ°Ñ»úеÄÜת±ä³ÉµçÄÜ¡£

The mechanical energy can be changed back into electrical energy by means of a generator or dynamo.

6. ¼Ù¶¨µçÔ´ÊäÈëµÄµçѹ±£³Ö²»±ä¡£

Assume that the voltage input of the power supply remains the same. 7.»¯Ê¯È¼ÁÏÊÇ·¢µç¹ý³ÌÖÐ×îΪƵ·±Ê¹ÓõÄÄÜÔ´¡£

Fossil fuels are most frequently used source daring the power generation process.

8µ¥¸ö»úеÁã¼þµÄ¿É¿¿ÐÔ³ÉΪÆÀ¹ÀÕų̂»úÆ÷ʹÓÃÊÙÃüµÄ»ù±¾ÒòËØ¡£

The individual reliability of machine elements becomes the basis for estimating the overall life

9. ˵ÎÒÃÇÉú»îÔÚÒ»¸öµç×Óʱ´ú£¬ÕâÒ»µã¶¼²»¿äÕÅ¡£ It's no exaggeration to say that we live in an electronic age.

10.·¢¶¯»úµÄתËÙ²»Ó¦³¬¹ý×î´óÔÊÐíÖµ¡£

Engine revolution should not exceed the maximum permissible.

11.ÈçÄÜ´Ó´óÐͺ˵çÕ¾»ñµÃ³É±¾¼«µÍµÄµçÁ¦£¬µç½âÇâµÄ¾ºÕùÄÜÁ¦¾Í»áÔöÇ¿¡££¨Electrolytic hydrogen£©¡£

If extremely low-cost power were ever to become available from large nuclear power plants, electrolytic hydrogen would become competitive. 12.µç×Ó¼¼ÊõÌṩÁËÒ»ÖÖеÄÏÔʾʱ¼äµÄ·½·¨¡£

A new way of displaying time has been given by electronics. 13.Ô¶¾àÀëÊäµçÐèÒª¸ßѹ£¬°²È«ÓõçÐèÒªµÍѹ¡£

High voltage is necessary for long transmission line while low voltage for safe use.

14. ÂÁµÄµç×è´óÔ¼ÊÇͬµÈ³ß´çµÄÍ­µÄ1.5±¶¡£

The resistance of aluminum is approximately half again as great as that of copper for the same dimensions = size

15. In fact,it is impossible for no force to be exerted on a body,since in this world everything is subject to the force of gravity. ÊÂʵÉÏ£¬ÎïÌå²»ÊÜÍâÁ¦×÷ÓÃÊDz»¿ÉÄܵģ¬ÒòΪÔÚÕâ¸öÊÀ½çÉÏÈκÎÎïÌå¶¼ÒªÊܵ½ÖØÁ¦µÄ×÷Óá£

16.In a thermal power plant,all the chemical energy is not

converted into heat.

ÔÚÈȵ糧£¬È¼ÁϵĻ¯Ñ§Äܲ¢Î´È«²¿×ª±ä³ÉÈÈÄÜ¡£

17.Many elements are thoroughly standardized.Testing and practical experience have established the most suitable dimensions for common structural and mechanical parts. ºÜ¶à»úеÁã¼þÊÇÍêÈ«±ê×¼»¯µÄ¡£ÆÕͨ½á¹¹ºÍ»úе²¿¼þµÄ×îÊʺϳߴç¿ÉÒÔ½èÖú²âÊÔ»òʵ¼Ê¾­ÑéÀ´È·¶¨¡£

18. Roller bearing can be classified into three basic types cylindrical roller bearing, needle roller bearing and tapered roller bearing.

¹öÖùÖá³Ð¿É·ÖΪÈýÖÖ»ù±¾ÀàÐÍ£¬¼´Ô²Öù¹ö×ÓÖá³Ð¡¢¹öÖéÖá³ÐºÍÔ²×¶¹ö×ÓÖá³Ð¡£ 1. ²»Í¬ÖÖÀàµÄ¸Ö£¬ÁÙ½çζȸ÷²»Ïàͬ¡£

The critical temperature is different for different kinds of steel. 2. ÈËÀà±È»úÆ÷È˸üÁé»î¶øÇÒ¸ü¸»Óд´ÔìÐÔ¡£

People are so much more flexible and inventive than robots.

3. It is said that numerical control is the operation of machine tools

by numbers.

ÈËÃÇ˵£¬Êý¿Ø¾ÍÊÇ»ú´²ÓÃÊý×Ö¼ÓÒÔ²Ù×Ý¡£

4. The new equipment will reduce the error probability by seven times. ÐÂÉ豸µÄÎó²î¸ÅÂʽ«½µµÍÆß±¶¡£

5. Robotics is so closely associated with cybernetics that it is

sometimes mistakenly considered to be synonymous.

»úÆ÷È˼¼ÊõÓë¿ØÖÆÂÛµÄÁªÏµÈç´ËÃÜÇУ¬ÒÔÖÂÁ½ÕßÓÐʱ±»´íÎóµØÈÏΪÊÇͬһ»ØÊ¡£ 6. High-speed steel is also referred to as self-hardening steel ¸ßËÙ¸ÖÓÖ³Æ×ÔÓ²¸Ö.

7. Safety proves one of the most essential factors that should be focused

on while students are doing experiments °²È«ÊÇѧÉúÔÚ×öʵÑéÓ¦¸Ã×¢ÒâµÄ×î»ù±¾µÄÒòËØÖ®Ò»

8. The design aims at automatic operation, easy regulation, easy

maintenance and high productivity

Éè¼ÆµÄÄ¿µÄÔÚÓÚ×Ô¶¯²Ù×÷£¬µ÷½Ú·½±ã£¬Î¬»¤¼òÒ×£¬Éú²úÂʸߡ£

9. The splendid building consists of bricks and concrete.It is the atoms

that make up iron, water, oxygen and the alike.

Õâ×ù׳ÀöµÄ½¨ÖþÓÉש¿éºÍ»ìÄýÍÁ×é³É£¬ÊÇÓÉÌú¡¢Ë®¡¢ÑõµÈÔ­×Ó×é³ÉµÄ¡£

10. From personal point of view, the phenomenon displayed (shown) in the

chart will continue in the upcoming years.

´Ó¸öÈ˽ǶÈÀ´¿´£¬Í¼±íÖÐËùÏÔʾµÄÏÖÏó½«ÔÚδÀ´¼¸Äê¼ÌÐø´æÔÚ¡£

11. Based upon the relationship between magnetism and electricity are

motors and generators.

µç¶¯»úÓë·¢µç»ú¾ÍÊÇÒԴź͵çÕâ¶þÕßÖ®¼äµÄ¹ØÏµÎª»ù´¡¡£ ¹´Ñ¡·¶Î§½ÚÑ¡£¨×îºó±³´Ë¾ä×Ó£¬ÒÔÉÏ29¸öÓÅÏȼ¶¸ß£©£»

1.The engine has given a constantly good performance. Õą̂·¢¶¯»úÒ»Ö±ÔËתÁ¼ºÃ¡£

2.Like charges repel each other while opposite charges attract. ͬÐÔµçºÉÏà³â£¬ÒìÐÔµçºÉÏàÎü¡£

3.The transformer works properly. Õą̂±äѹÆ÷ÔËתÕý³£¡£

4.The motor is not working. µç¶¯»ú¹ÊÕÏÁË¡£

5.The threads of the screw work hard. ÕâÂÝË¿µÄÂÝÎÆÌ«É¬ÁË¡£ 6.In order to meet the critical service requirements, scientists are still looking for better materials.

ΪÂú×ãʹÓõĽôÆÈÒªÇ󣬿ÆÑ§¼ÒÃÇÈÔÔÚѰÕÒ¸üºÃµÄ²ÄÁÏ¡£

7.At present coal is the most common food of a steam power plant. Ŀǰ£¬ÃºÈÔÈ»ÊÇÄýÆûʽµç³§×î³£ÓõÄÄÜÔ´¡£

8.In the absence of force, a body will either remain at rest, or continue to move with constant speed in a straight line.

ÉÐÎÞÍâÁ¦×÷Óã¬ÎïÌåÔò±£³ÖÆä¾²Ö¹×´Ì¬£¬»ò×öÔÈËÙÖ±ÏßÔ˶¯¡£ µ¥´Ê»ã×Ü£»

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