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Based on some principal rules of brittle rocks polyaxial tests and previous researches, three controlling failure types for brittle rock are obtained. The first type represents the brittle failure controlled by extension microcrack under the condition of lower hydrostatic pressure; the second represents the ductile failure controlled by friction sliding action under the condition of higher hydrostatic pressure when microcrack is close; and the third represents brittle-ductile failure type controlled by multiple factors mentioned above under the condition of high hydrostatic pressure when some microcracks are open and others are close.

通过分析脆性岩石多轴试验中的强度和破坏规律，在已有研究成果基础上，将其强度和破坏控制类型主要归结为3种：类型1，低静水压力时裂缝张开扩展，主要表现为张性微裂缝控制型脆性破坏；类型2，静水压力很高时，裂缝闭合，主要表现为摩擦滑移控制型延性破坏；类型3，处于两者之间时，微裂缝一部分张开，一部分闭合，主要表现为两者复合控制型脆延破坏。

The mRNA level of per gene under high temperature was higher than that under low temperature when the larval and pupal stages were under the same photoperiod.

温度和光照是昆虫近日节律基因表达的授时因子，也是影响家蚕滞育的决定因素。

Pollen germination rate on stigmas, pollen germination rate on culture medium and stainable pollen grain rate by I-KI of the four cultivars on average under high temperature were 16.00, 25.85, and 11.74 percentage points lower than those under nonnal temperature at that time, and 8.49, 6.63, and 6.02 percentage points lower than those under normal temperature at 4 days after treatment.

相同的趋势也表现在同期开花颖花的结实特征上，高温处理的当天和其后4d开花颖花的结实率分别平均下降了14.04和5.95个百分点；而高温处理当天的空粒率和秕粒率平均分别提高了10.06和3.98个百分点，处理后4d分别提高了3.98和1.97个百分点。

At present, we can produce under 30ton anchors, under 35ton Fabricated Steel Stockless Anchor and under 20ton single steel casting for marine, Construction, mining, machinery, engineering.

目前，公司能生产30吨以下的铸钢锚、35吨以下的钢板焊接锚以及单件20吨以下的船用、建筑、矿山、机械、工程用等铸钢件。

According to transpiration rate, extracells CO2 concentration, stomatic conductance of four alfalfa varieties under water-stress, it was concluded that reduction of photosynthetic rate was primarily resulted from stomatal factors under light and medium water stress and nonstomatal factors under severe water-stress in the experiment during branching.

通过分析水分胁迫紫花苜蓿分枝期叶片气孔导度、蒸腾速率和胞间CO2浓度的变化，认为试验中轻度和中度水分胁迫下光合速率下降的主要因素是气孔因素，重度水分胁迫下光合速率下降的主要因素是非气孔因素。

The latency of the first component of SEP, which related to thalamocortical input, was shortest under awake and longest under HVRS, and their magnitudes under AW and paradoxical sleep were higher than those of slow-wave sleep and HVRS.

体诱发电位波形之第一个构造的时间延迟是与视丘皮质输入有关系，它在清醒期间的时间延迟最短，而在高电位节律性棘波期间的时间延迟最长。

3 patients were all treated with nuss procedure, which were performed under general anesthesia with endotracheal intubation. a transverse incision was made in each lateral chest wall and a steel bar was passed under the sternum from the right thoracic cavity under thoracoscope, then the bar was turned over to raise the sternum to the normal position.

3例患儿均应用nuss手术治疗，即在胸腔镜下将塑形矫正板由一侧胸腔经胸骨后心包裸区穿至对侧胸腔，翻转后固定于对侧胸骨。

With the aid of the experiment, crack formation and its expand pattern of ZTA ceramics under ultrasonic vibration were analyzed, its fracture criterion was established and the experiment results showed that intercrystalline fracture is the main fracture pattern of ZTA ceramics under common grinding, and transcrystalline fracture is the main fracture pattern of ZTA ceramics under TDUVAG, and the finding add to evidence showing that TDUVAG has better material removal property.

基于该方法分析具有预制裂纹的ZTA纳米复相陶瓷材料在超声振动条件下裂纹扩展方式，确立其断裂判据，通过该断裂模拟试验得出：沿晶断裂是普通磨削主要的断裂模式，而穿晶断裂是二维磨削主要的断裂模式，进一步证明二维磨削具有较好的材料去除特性。

Equiaxed and bigger grains are produced after C.P.Ti is deformed under the high temperature. Besides, many tiny subgrains were found in some of the metallurgical structure. The dislocation reaction caused by the deformation under the high strain rate generates ductile cellular metastructures, while the equiaxed cellular metastructures are generated under the low strain rate. The metallurgical structure of TC4 alloy including lath-shaped hexagonal martensite and trimetric martensite only exists in the higher temperature. The homogeneous, tiny and reticular grain shown after extreme high temperature deformation.

在高应变速率下变形引起的位错反应形成拉长的胞状亚结构，而低应变速率下变形则形成等轴的胞状亚结构；TC4合金在特高温变形条件下其金相组织呈网篮状，显微组织几乎全部为均匀细小的晶粒，同时出现了板条状六方马氏体；在温度尤其高的情况下还形成了斜方马氏体，变形引起的位错反应形成六方位错网络，在1200℃以下的变形易产生孪晶。

Among these three types of water locking damage, the water locking under underpressure condition has the minimal damage, the damage under overpressure condition is relatively maximal, and the damage under normal pressure is relatively medial pressure is relatively medial.

研究表明，低渗透砂岩气藏的水锁伤害具有普遍性和严重性，其中欠压作用下的水锁伤害最小，超压作用下的水锁伤害最大，常压作用下的水锁伤害居中。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&