The HIV infection situation was still in low level, but HIV infected people were found from 3 kinds of high risk population, so effective measures should be taken for HIVAIDS control and prevention.
我省HIV感染率仍处于低水平，但在3类高危人群监测到了HIV感染者，危险因素广泛存在，应进一步采取有效预防措施控制艾滋病的传播。
Whether safety regulation cost is high or low, enterprises will maintain valid proof level as long as safety regulation is effective and reasonable.
无论安全监管的成本高还是低，只要安全监管是有效且合理的，企业就会保持有效的预防水平。
Therefore, it is significant to take effective measures for the purpose of limiting short-circuit current to a reasonable and low level.
因此，采取有效的短路限流措施将短路电流限制到合理、较低的水平具有重要意义。
And, as an external governance mechanism, it has been effective in selecting low-level enterprises and punishing management with control rights transference and management turnover.
作为企业的外部控制机制，控制权市场通过控制权转移、管理层更替的途径发挥了应有的治理效力，弥补了董事会治理的不足。
The content level of base exchange capacity and effective boron had a waving trend of low high low high.
交换性钙与速效硼呈低—高—低—高的波浪式变化趋势；
The content level of base exchange capacity and effective boron had a waving trend of low high low high.
交换性钙与速效硼呈低—高—低—高的波浪式变化趋势；
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