Before taking a class, check whether the instructor is registered with the yoga Alliance, a certification that requires at least 200 hours of training in yoga techniques and teaching.
上课之前，打听一下上课教练是否有瑜伽教师资格，获得这个证书需要至少200个小时的教授瑜伽技巧的经历。
You should also understand that certification authorities cannot in all circumstances check the validity of a digital certificate on which a digital signature is based.
也应该理解证书颁发机构不能在所有情况下都验证数字签名所基于的数字证书的有效性。
The manufacturer shall provide the factory quality certification and factory check out report with testing data.
供应商提供的出厂合格证书和厂内试验报告。
应用推荐