First, read the English article below.

Testosterone naturally peaks in adolescence and young adulthood and drops off as you age. If a blood test reveals that you have low testosterone levels, there's a good chance this could be the culprit behind your erectile dysfunction. Your doctor will likely recommend natural lifestyle changes first, such as losing weight or increasing muscle mass. If your testosterone levels are lower than average for your age, they may prescribe taking supplemental testosterone.If you're experiencing low testosterone levels as a result of aging, remember that this is completely normal. It's not currently advised to take testosterone as a way of addressing this. Your doctor may prescribe you medication that works by increasing the blood flow to your penis, and thus helping you maintain an erection. Medications commonly used to treat ED include Viagra, Cialis, and Levitra.  If your doctor prescribes Cialis, your doctor will likely recommend that you take 10 to 20 mg at least 30 minutes before sexual activity. You should not take the medication if you experience severe hyperactivity to the medication or if you are using nitrates, such as nitroglycerin, for chest pain. If your doctor prescribes Levitra, then you will need to take it with or without food 60 minutes before sex. This medication should not be taken with nitrates either. You may also ask your doctor about the use of mechanical aids to help you achieve and maintain an erection. Some men use vacuum devices and constriction rings to aid erections. The vacuum is placed over the penis and pumps out air, drawing blood to the penis and causing an erection.  This is maintained by placing a band or ring at the base of the penis, that keep it erect for up to thirty minutes. This can, however, be a uncomfortable and awkward way to treat ED. An alternative method that you may be advised on by a doctor is penile injection therapy. For this you will be trained by the doctor how to inject your penis with medicine that relaxes the blood vessels and promotes the blood flow that... 

Now, please write a short abstract for it in Chinese. Abstract:
通过验血检查睾酮水平。 考虑口服药。 研究机械辅助设备。 使用阴茎注射疗法。 了解经尿道药物治疗。 考虑选择手术。