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Retinal laser photocoagulation is necessary for the peripheral lattice retinal degeneration associated with hole, vitreous traction, local detachment, aphakic eye or pseudoplatic eye to prevent retinal detachment, and it is effective and safe.

对伴有干性裂孔、玻璃体牵引、一眼已有视网膜脱离、无晶状体或人工晶状体眼的周边部视网膜格子样变性进行预防性激光光凝治疗是必需、安全和有效的。

The hole in which the bushing is mounted are smooth and free from burrs, fins and the like.

内部电线套管—如果与电套管接触的孔面是光滑的,无毛刺,则可以使用氯丁橡胶套管或PVC套管。

Objective:To explore the effects of out cavity single slip knot technique in non titanium clip two hole method laparoscopic cholecystectomy.

目的:探讨腔外单滑结技术在无钛夹二孔法腹腔镜胆囊切除术中的效果。

Methods:To analyzed the clinical data of 62 patients underwent two hole method LC with out cavity single slip knot technique.

目的:探讨腔外单滑结技术在无钛夹二孔法腹腔镜胆囊切除术中的效果。

The rule for shrinkage of squeeze casting is verified in the example of Al Si alloy.

本文以铝硅合金为例,对挤压铸造的无缩孔判据进行验证。

METHODS: The subcutaneous adipose tissue was obtained from adult New Zealand rabbits under aseptic condition, and cultured in vitro with collagenase digestion. All cells were divided into 3 groups: in the BMP-2 group, cells were cultured with medium containing 0.1 g/L vitamin C, 10 mmol/Lβ-sodium glycerophosphate and 10μg/L BMP-2 for 10 minutes, followed by 4-14 days inoculation with density of 18×104 cells per pore. In the BMP-7 group, cells were cultured with BMP-7 with the same methods as BMP-2 group. The cells were cultured with simple culture medium in the control group.

无菌切取成年新西兰大白兔皮下脂肪,胶原酶消化法体外分离培养脂肪干细胞,分为3组:骨形成蛋白2组加入含0.1 g/L维生素C、10 mmol/L β-甘油磷酸钠、10 μg/L骨形成蛋白2的诱导培养基培育15 min,然后按18×104个细胞/孔接种,再培育4~14 d;骨形成蛋白7组培养方法基本相同,仅将骨形成蛋白2更换为骨形成蛋白7;对照组同法加入单纯培养基进行培育。

At the initial observation of leakage, judge on the leaking part of the foundation, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring has questions; such as disk when leakage can be concluded that there is significant change are moving , static friction ring problem exist; such as leakage of medium along the jet axis, the actin ring seal problem exist mostly, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the many for the static seal ring failure.

在初步观察泄漏量、判断泄漏部位的基础上,再手动盘车观察,若泄漏量无明显变化则静、动环密封圈有问题;如盘车时泄漏量有明显变化则可断定是动、静环摩擦副存在问题;如泄漏介质沿轴向喷射,则动环密封圈存在问题居多,泄漏介质向四周喷射或从水冷却孔中漏出,则多为静环密封圈失效。

Leakage in the initial observation to determine the basis of the leakage site, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring problem; such as the disk when there are significant changes in leakage can be concluded that the dynamic , static friction ring problems; such as leakage of medium along the jet axis, while moving most of Central ring problems, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the seal ring for static failure.

在初步观察泄漏量、判断泄漏部位的基础上,再手动盘车观察,若泄漏量无明显变化则静、动环密封圈有问题;如盘车时泄漏量有明显变化则可断定是动、静环摩擦副存在问题;如泄漏介质沿轴向喷射,则动环密封圈存在问题居多,泄漏介质向四周喷射或从水冷却孔中漏出,则多为静环密封圈失效。

Leakage in the initial observation to determine the basis of the leakage site, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring problem; such as the disk when there are significant changes in leakage can be concluded that the dynamic , static friction ring problems; such as leakage of medium along the jet axis, while moving most of Central ring problems, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the seal ring for static failure.

在初步察看泄漏量、断定泄露部位的基本上,再手动盘车视察,若泄漏量无显明变更则静、动环密封圈有问题;如盘车时泄漏量有显著变更则可判断是动、静环摩擦副存在问题;如泄漏介质沿轴向喷射,则动环密封圈存在问题居多,泄漏介质向四周喷射或从水冷却孔中漏出,则多为静环密封圈失效。

Leakage in the initial observation to determine the basis of the leakage site, and then manually set car observation, if the leakage were no significant changes in static and dynamic sealing ring problem; such as the disk when there are significant changes in leakage can be concluded that the dynamic , static friction ring problems; such as leakage of medium along the jet axis, w你好le moving most of Central ring problems, leakage to the surrounding medium or from the water spray cooling holes in the leakage, the seal ring for static failure.

杂质泵安装静试时泄漏机械弥缝安装调试好后,一般要进行静试,察看泄漏量如泄漏量较小,多为动环或静环弥缝圈存在问题;泄漏量较大时,则表白动、静环磨擦副间存在问题在开端察看泄漏量、判断泄漏部位的根蒂根基上,再手动盘车察看,若泄漏量无明显变化则静、动环弥缝圈有问题;如盘车时泄漏量有明显变化则可下定论是动、静环磨擦副存在问题;如泄漏介质沿轴向喷洒,则动环弥缝圈存在问题居多,泄漏介质向四周喷洒或从水冷却孔中漏出,则多为静环弥缝圈失效此外,泄漏通道也可同时存在,但一般有主次区分,只要察看细致,认识结构,一定能正确判断

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