The first edition of this book did not make a link but, in line with the new clinical definition of PTSD in 1994, that omission has now been corrected.
本书的第一版并没有建立一个联系，可是，这一遗漏已经更正以适应于1994年对临床PTSD的新定义。
2
The control valve Handbook, Fourth Edition, is both a textbook and a reference on the strongest link in the control loop: the control valve and its accessories.