lhh
- abbr.向左(Left-Hand Head);哈里森职业服务公司(Lee Hecht Harrison)
lhh-
The HSE sector shall manage the measuring tools according to Q / LHH / A ZII13-2004 Controlling Procedure of Monitoring & measuring Device .
质量部门按公司《Q/LHH/AZII13-2004监视和测量装置的控制程序》的规定对计量器具进行管理。
-
The field verification indicates that cutting life of straight stem twist drill treated with " LHH " tempering can be increased about 30 % when compared with that by conventional three times tempering , and thus the energy and man-hour may be saved .
直柄麻花钻用DGG回火处理，其切削寿命比常规三次回火的约提高30%，且可以降低能耗。