英语翻译when necessary,machinery for improved and efficient services to users.

when it is necessary 为什么可以变为when necessary? 英语翻译when necessary,machinery for improved and efficient services to users. To be taken when necessary. 英语翻译be necessary中文.、 if it is necessary /if necessary /when it is necessary 意思一样吗 necessary 英语翻译Asking for information or help is a very common and necessary activity,especially when we visit a foreign country.So knowing how to ask for information politely is important.In English ,where are the restrooms?and Counld you please tell m 英语翻译Asking for information or help is very common and necessary activity,especially when me visit a foreign country.So knowing how to ask for information politely is important.In English,Where are the restrooms and Could you please tell m When your design is done,it is usually necessary to present the results to your client peers,or em机械英语翻译不要有道翻译的 英语翻译Mass production methods can only be employed when the market is large enough to justify the enormous but necessary start up costs. 有only when necessary和if necessary吗?有什么区别吗? It is necessary ( ) travellers to take a map when keep silent when necessary~~~ 这段英语是什么意思? 英语翻译when decidingwhich form of training to provide,an employer must consider such things as theavailability of staff with necessary skills and time to provide on-the-jobtraining and the types of off-site training available,in addition to thee 英语翻译When it is necessary to communicate with the specification team,the intermediate team becomes involved so as to avoid contaminating the clean-room requirements.The coding team writes down the unclear portion of the functional specificatio 英语翻译All that is necessary for the triumph of evil is that good men do nothing.When bad men combine,the good must associate; else they will fall one by one,an unpitied sacrifice in a contemptible struggle. 英语翻译Food,as essential prerequisite for existence,is substance that provides the nutrients necessary to maintain life and growth when ingested.It plays an irreplaceable role in the development of society and in the progress of human beings,whe 英语翻译The representative is to arrange with the plastic manufacture to be advised when such test samples have been received so that the representative may take necessary action to forward the samples to the Reviewing Office.再帮忙分析一