他们还得进行试验性评分并接受了培训后才能合格。
They also have to be certified as IELTS examiners after carrying out some trial marking and receiving training.
描述了中国、美国、英国、日本等国的岩土锚杆标准中关于锚杆设计安全系数、验收试验及锚杆合格条件规定的合理性和必要性。
The rationality and necessity of specification for safety factor, acceptance test and qualification of anchor in the ground anchorage standards of China, America, British and Japan are discussed.
根据耐久性试验中老化试验的条件，估算了一台合格的高压并联电容器在标准和技术条件规定的条件下运行时，其预期的使用寿命。
According to the conditions of ageing test within endurance test, the expected operation life of a high-voltage shunt capacitor which operates under the standard condition is estimated.
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