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The three groups were loaded and analyzed under the same loading according to the mean value of the bite force of incisors. RESULTS:(1)The maximum stress of dentin in group A was twice higher than that in group B. The maximum primary stress, minimum primary stress and maximum shear stress of group A were respectively 236.35, 228.83 and 218.05 percent of those in group B. The difference of maximum stress values of group B and group C was neglectable.(2) The maximum stress distribution of dentin in group A and group B was quite different (the stress was concentrated in labial and lingual side of the cervical dentin in group A, otherwise in group B it was concentrated in the area around the alveolar and the labial and lingual side of the dentin which was opposite to the tip of the cast metal post and core). The maximum stress distribution of dentin in group A and group B was almost the same.

结果：(1)从牙本质的应力大小来看，A组中牙本质最大应力值比B组中牙本质最大应力值增大了1倍以上（最大主应力、最小主应力和最大剪切应力A组分别是B组的236.35%、228.83%和218.05%），而B组与C组的牙本质最大应力值相差极小；(2)从牙本质的应力分布位置来看，A组与B组的牙本质最大应力分布位置相差甚远（A组主要集中在牙颈部唇舌侧肩台部的牙本质上，B组主要集中于牙槽嵴顶附近及铸造桩核尾端相对应的唇舌侧的牙本质上），而B组与C组的牙本质最大应力分布几乎在同一位置。

A large number of hospitals in the region to fill gaps in the history of technology, such as in 1958 to carry out the chest tumor; in 1959 discovered the first case of leptospirosis in the region; in 1960 discovered the first case of scrub typhus in the region; in 1961 to carry out two rheumatic heart disease Closed mitral dilation and liver resection; in 1963 to carry out low-temperature under anesthesia for congenital pulmonary valve stenosis open heart surgery; in 1969 to carry out the tumor radiation therapy; implemented in 1975 brain tumor resection; in 1981 to carry out the second tip Valve replacement; in 1982 to carry out artificial joint replacement; in 1983 for the installation of a patient implantable artificial heart pacemaker .......

医院有着大量填补本地区技术空白的历史记录，如1958年开展胸腔肿瘤切除术；1959年发现本地区首例钩端螺旋体病；1960年发现本地区首例恙虫病；1961年开展风湿性心脏病二尖瓣闭式扩张术和肝叶切除术；1963年开展低温麻醉下先天性肺动脉瓣狭窄心脏切开直视手术；1969年开展肿瘤放射治疗；1975年施行脑瘤切除术；1981年开展二尖瓣置换术；1982年开展人工关节置换术；1983年为病人安装埋藏式人工心脏起搏器……。

Lateral crus presented diamond-shaped or long strip,(16.21 ± 2.71) mm in length,(8.45 ± 1.72) mm in width,(1.09 ± 0.18) mm in thickness. Cephalic rim intersected lower edge of lateral nasal cartilage, and slightly covered the lower edge of the lateral nasal cartilage, so that the two were overlapped, but also only the intersection without overlapping. Lateral crus constituted the base of nasal wings. Narrow medial crus formed nasal tip and the frame of front nasal columella, showing posteroinferior curve or S shape,(13.06 ± 2.16) mm in length,(3.79 ± 0.58) mm in width,(1.02 ± 0.18) mm in thickness. The left and right medial crus in the middle were connected by connective tissue, and in the same way connected to the anterior margin of the lateral nasal cartilage.

外侧脚呈菱形或长条形，长(16.21±2.71) mm，宽(8.45±1.72 ) mm，厚(1.09±0.18) mm，头缘与侧鼻软骨下缘相交，并略覆盖侧鼻软骨下缘使二者部分重叠，也可仅相交而无重叠；外侧脚构成鼻翼大部的基础；内侧脚狭细，构成鼻尖和鼻小柱前部的支架，呈向后下的弧形弯曲或S形弯曲，长(13.06±2.16) mm，宽(3.79±0.58) mm，厚(1.02±0.18) mm；左、右内侧脚在正中线借结缔组织相连，并以相同方式连于侧鼻软骨的前下缘。

The ethylene release rate was measured in shoot tip of different sex ramie in different time, the budof same node in female and hermaphrodite ramie in second crops and different sex singleinflorescence in hermaphrodite ramie. The result indicated there was closed relationship betweensexual different ramie and ethylene release rate. The female ramie could be induced by highethylene release rate. the ethylene content in ramie plant with female flower is higher than ramieplant with androgynary in stem apex, leaf and flower.

5对不同性别苎麻茎尖乙烯释放速率、不同性别苎麻材料不同节位花芽乙烯释放速率、雌雄同株苎麻的雌花序、雄花序和雌雄混合花序的乙烯释放速率进行测定，同时对外施乙烯抑制剂(AVG和AgNO_3)对苎麻性别的控制进行研究，表明苎麻性别分化与内源乙烯密切相关，高水平乙烯释放速率诱导雌株苎麻或雌花的产生。

Work on pressure-jets in preparation for the Jet Gyrodyne and the Rotodyne led Fairey to believe that a rotor-tip drive would be ideal for the Ultra-light Helicopter, and preliminary studies showed that a tip-jet-driven version could be designed to do better than meet the requirements.

飞机上工作的压力，在准备射流Gyrodyne和旋飞领导费尔雷相信，转子尖驱动器将是最理想的直升机超轻型，并初步研究表明一个举报喷气驱动的版本可用于做更好满足要求。

Somatic embryos can be produced both from the surface and the inner of the calli. Embryogenic cell has normal shape, dense cytoplasm , clear nucleolus, hearty metabolize; Plantlet regenerations were developed from global embryo, heart-shaped embryo, torpedo-shaped embryo and cotyledon embryo, in which the V-shaped vessel vascular bundles and shoot tip meristem and root tip meristem were observed.

胚性细胞多为椭圆形，细胞质浓厚，核仁明显，代谢旺盛；体细胞胚经过球形胚、心形胚、鱼雷形胚和子叶胚而发育成再生植株，子叶期体细胞胚可观察到明显的V型维管束、茎尖分生组织以及根尖分生组织。

It is clarified for the first time that the thermal fatigue failure of solder joint is actually a creep strain low cycle fatigue failure, and a physical model for creep fatigue crack propagation has been proposed. It was pointed out that creep strain increases in the high stress area ahead of the tip of thermal fatigue crack, results on one hand that the slide of crack tip increase, inactivation more serious and crack close length increases, the other hand, that intergranular crack exists, whose direction will affect the fatigue crack propagating.

本文首次阐明了焊点的热循环失效本质上是以焊点内循环蠕变为主要应变的低周疲劳失效，并在此基础上提出了蠕变疲劳裂纹扩展的物理模型，指出热循环裂纹前端的高应力区内，蠕变加剧，使裂纹前端滑移增加，裂纹钝化加剧，导致随后的裂纹闭合扩展长度增加；同时蠕变也使裂纹前端的高应力区出现晶间裂纹，蠕变沿晶裂纹对主裂纹扩展的影响取决于沿晶裂纹的连接方向。

All-in-one complex tip design (70W heater, sensor tip) has strong heat recovery for leadfree soldering.

一体化复合咀设计(70W发热芯，感温焊咀)有强大回热功能，适用于无铅焊接。

All-in-one complex tip design (70W heater, sensor tip) has strong heat recovery for leadfree soldering.

一体化复合咀设计(70W发热芯，感温焊咀)有强大回热功能，适用於无铅焊接。

All-in-one complex tip design (70W heater, sensor tip) has strong heat recovery for leadfree soldering.

一體化複合咀設計(70W發熱芯，感温焊咀)有強大回熱功能，適用於無铅焊接。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。