这家工厂拥有一套先进的排气装置.The factory has an advanced exhaust.向窗外我可以看见老行政楼的排气系统.I could look out and see the exhaust system of the E . O . B.发动机气门的二种型式是:进气口和排气口.The two types of engine valves are intake and exhaust....
It causes blindness or serious loss of vision.这能导致失明或视力严重受损。Early diagnosis and treatment can usually prevent blindness.早期的诊断和治疗通常可以预防失明。I have long since come to terms with my blindness.我早就安于自己的失明了....
For determining potency and residues by microbiological assay technique . Especially for Lincomycin , Clindamycin, Neomycin , ROXithromycin, etc.用于林可霉素,克林霉素 、 新霉素 、 罗红霉素等效价及残留的微生物学测定.The immunogenic potency of soluble an...