木材密度是表示木材材质的重要指标，它是木材内部因子综合性指标的外在反映。
Wood density is an important index to evaluate the wood quality and it's also the external reflection of the comprehensive index of the wood interior factor.
传统，血液凝固计划已分为外在和内在的途径，在X因子被激活点汇合。
Traditionally, the blood coagulation scheme has been divided into extrinsic and intrinsic pathways, converging at the point where factor X is activated.
系统分析了影响浆砌石坝安全的各种内在因素和外在因素，详细介绍了这些安全因子的影响程度，深入探讨了浆砌石坝的破坏机理。
All the inner and outer factors which affect the safety of the masonry dam are analyzed systematically, and the destructive mechanism of the masonry gravity dam is discussed in detail.
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