評論
打印
Roles for the Mechanical Engineer
機械工程師的任務
Do you realize that every time you take a step,the bones in your hip are subjected to forces between four and five times your body weight?
你是否意識到，你每走一步路，你臀部的骨骼在承受四五倍于你體重的力量？
When you are running, this force is increased further still.
跑步的時候，這種力量還會更大。
What happens if through disease a hip-joint ceases to be able to resist such forces?
如果因為疾病導致其中一個髖關節不再能夠支撐這么多的力量，將會出現什么情形呢？
For many years hip-joints and other body joints have been replaceable either partially or completely.
多年來，人們就已經在部分地或全部地替換身上的髖關節或其他關節。
It is after all a simple ball and socket joint;it has certain loads imposed on it;it needs reliability over a defined life;it must contain materials suitable for the working environment.
畢竟這不過是個簡單的球窩接頭，它需承受一定的負荷，要求在正常使用壽命內百分之百不出問題，而且必須用適合其工作環境的材料來制作。
Any engineer will recognize these as characteristic of a typical engineering problem,which doctors and engineers have worked together to solve,in order to bring a fresh lease of life to people who would otherwise be disabled.
任何工程師都會把這些要求看做是個典型的工程問題，而這個問題醫生和工程師已經合作解決，旨在讓原本會殘疾的人獲得新生。
This typifies the way in which engineers work to help people and create a better quality of life.
工程師可以幫助人們創造更高質量的生活，上面這一點正是他們的工作方法的寫照。
The fact that this country has the most efficient agricultural industry in the world is another good example.
這個國家擁有世界上最高效的農業，這是另一個有說服力的例證。
Mechanical engineers have worked with farmers and biologists to produce fertilizers, machinery and harvesting systems.
機械工程師與農民，生物學家一起共事，共同生產制造出化肥，機械和收割系統。
This team effort has now produced crops uniformly waist high or less so that they are better suited to mechanical harvesting.
現在這個團隊合作生產的農作物一律齊腰高，這樣就更適合機器收割。
Similar advances with other crops have released people from hard and boring jobs for more creative work,whilst machines harvest crops more efficiently with less waste.
對其他農作物所做的類似改進使得人們可以從臟活累活中解脫出來，從而轉向那些更富有創造性的工作，同時由機器收割莊稼可以提高效率，降低損耗。
Providing more food for the rapidly increasing population is yet another role for the mechanical engineer.
而為快速增長的人口提供更多的食物則是機械工程師的又一項任務。
