set occurrence

Appraisal organization optional, repeat set, each department decentralized management, fragmented, and many departments identification, long time not draw appraisal conclusion and not normal now as common occurrence.

鉴定机构随意、重复设置，各部门分散管理、各自为政，多头鉴定、久鉴不决等不正常现像屡见不鲜。

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The first group of clea-( vage,) being distributed at the footwall of main thrust and controlled by faults, behaves as a set of compressive planes whose occurrence, deformation characteristics and slipping direction are consistent with that of the main thrust.

第一种劈理分布在主干逆冲断层下盘，受断层控制，为一组压扭性构造面，其产状、变形特征和滑动方向与主干逆冲断层相一致；

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An index of risk of contingencies utilizing the time margin of contingency and probability of contingency occurrence is defined, and an index of transient security risk of the system are also defined under certain kind of contingency set.

利用预想事故的时间裕度和发生概率定义了预想事故的风险指标，并定义了度量系统在特定类型事故集合下的暂态安全风险指标，然后据此提出了一种对系统进行暂态安全评估的方法。

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To address the issue of potential occurrence of temperature cracking common to mass and high strength concrete, this paper adopts a set of effective temperature control measures to prevent occurrence of the harmful crack, covering the concrete preparation and construction control.

本文针对大体积高强混凝土容易产生温度裂缝的特点，从混凝土的配制和施工措施入手，采取一系列行之有效的温控措施，从而避免了有害裂缝的产生。

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