Improving forest resources quality is the critical factor of solving supply of forest resources and the problem of ecological environment deterioration.
森林资源质量的提高是解决我国林木资源供给不足、生态环境恶化的决定性因素。
Thermal effects are a major factor in polymer deterioration.
热效应是聚合物劣化中的一个主要因素。
It has become an important factor for water resource deterioration that hydrologic system is impacted by farming activities.
农事活动对水文系统的干扰已成为水资源恶化的重要因素。
The result showed that light was a very important factor for seaweed biscuit oxidizing deterioration, which could be prevented by using mixed antioxidants effectively.
结果表明：光照是影响苔菜饼氧化变质的主要因子，添加复合抗氧化剂能有效防止苔菜饼的氧化变质。
Improving our forest resources quality is the critical factor to solve under supply of our forest resources and the problem of deterioration of ecological environment.
森林资源质量的提高是解决我国林木资源供给不足、生态环境恶化的决定性因素。
Improving forest resources quality is the critical factor to solve the problem of under-supply of forest resources and ecological environment deterioration in China.
森林资源质量的提高是解决我国林木资源供给不足、生态环境恶化的决定性因素。
Objective to understand the actual blood flow in cases with middle and late stages of glaucoma and the role of vascular factor in the deterioration of visual function in such patients.
目的了解中、晚期青光眼患者眼动脉血流情况及血管因素在中、晚期青光眼患者视功能损害机制中的作用。
Marly crack and deterioration of many bridge deck overlays have been attributed to the traffic load, nature factor and high thermal or shrinkage stress development in the concrete.
混凝土桥面铺装在交通荷载、自然因素、温度与收缩应力综合作用下，普遍出现了早期开裂与破坏。
The age is the main risk factor for cognitive deterioration. High family relationship score is related to cognitive improvement.
增龄是认知退步的危险因素，家庭关系是认知改善的重要因素。
An inexpensive litz wire coil ensuring sufficiently high space factor and insusceptible to deterioration in characteristics even in high frequency region.
一种绞合线线圈，即使在高频区域中也没有特性恶化的影响，廉价且能够得到充分的高占空系数。
The deterioration caused by virus diseases is the main factor that reduces the yield. This brings a negative influence to the production of potato in the country.
由病毒所引起的退化是造成马铃薯产量低下的主要原因，这给世界马铃薯生产带来十分严重的危害。
Pulmonary infection is a major risk factor associated with deterioration.
肺部感染可能是促使病情恶化的重要因素之一；
Rutting is one of the major deterioration forms of high level asphalt pavement for channel traffic and the significant factor to affect the roughness, performance, driving safety and comfort.
车辙是渠化交通高等级公路沥青路面的主要损坏形式之一，是影响路面平整度、路面使用性能、行车安全性和舒适性的重要因素。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
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