采用石蜡组织切片和扫描电镜法，对齐口裂腹鱼卵巢发育进行了组织学研究。
By using the routine method of wax section and scanning electron microscope, the development of the ovary of Schizothorax prenanti was studied.
采用七种高纤维素型立向下电焊条，通过斜y坡口裂纹实验，对高强管线钢的冷裂敏感性进行实验研究。
The cold cracking sensibility of high tensile pipeline-steel was studied by Ygroove cracking test using seven kinds of high cellulose electrode of vertical down position welding.
文中给出的算例表明，适当控制通入的电流强度，可以达到有效控制裂尖熔化区尺寸以及形成焊口的目的。
If a current with proper intensity has been switched on, the goal of controlling the melting and welding dimension effectively around the crack tip can be obtained.
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