Master of Science in *** Engineering
才是比较标准的
中国的正规“工学硕士”应该对应这个比较标准
Master of Engineering，对应“工程硕士”，实际上国外也有这种学位，很多是不用做研究，不用写毕业论文的。不过我觉得在中国混用也无所谓，如果一定要较真的话，你应该用Master of Science in Engineering
看维基百科对美国的Master of Engineering的解释
In the United States, the Master of Engineering degree is generally a professional degree offered as a coursework-based alternative to the traditional research-based Master of Science. It is typically a two-year program, and many universities allow students to choose between the Master of Engineering and the Master of Science. The Master of Engineering degree is offered at many leading universities in the United States and is considered a terminal degree in the field of engineering. In other words, it would not be the degree one would select if one’s overall goal is to achieve a Ph.D.
Typically, Master of Engineering students have the same course completion requirements as a Master of Science students, but do not need to perform independent research or write a thesis. The M.Eng is often referred to as a "Class Masters". | 
