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.
在今后的三年内，持续增长但选择性更强的市场对合格的景观设计师的需求将会增加。
In the coming three years, the still growing but more selective market will require more qualified landscape architect professionals.
为了预测可靠性，一个可靠的阀门设计必须通过临界操作条件下的应力分析和功能合格测试。
In order to predict reliability, a sound valve design must be backed up up by a stress analysis and functional qualification testing under critical operating conditions.
为了预测可靠性，一个可靠的阀门设计必须通过临界操作条件下的应力分析和功能合格测试。
In order to predict reliability, a sound valve design must be backed up up by a stress analysis and functional qualification testing under critical operating conditions.
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