One of the problem areas is lax security for airport personnel.问题之一是对机场员工的安检措施马虎松懈。There have been allegations from survivors that safety standards had been lax.生还者一直指责安全标准执行不严。a lax attitude to health and safety regulat...
He measured the speed at which ultrasonic waves travel along the bone.他测出了超声波穿过骨头的速度。Set up ultrasonic wire bonding laboratory.成立超声波电子焊接实验室。Modern medical technology like type-B ultrasonic checks can reveal the fetus gen...
A new Liriope long in cultivation key to species of the genus.一种栽培已久新有正名的麦冬附该属的种检索表.Occurrence Rule and Control Measure of Main Diseases and Insect Pests on Liriope spicata ( Thunb ) Lour.与麦冬主要病虫害发生规律及防治措施> > 相似的文献....