The reasonable bonding joint between load-bearing metal parts and composite for the present of a certain torpedo is decided to achieve the ideal bonding and leakproof.
确定以某型号雷体为代表类型的水下兵器用金属承力件与复合材料的合理胶接接头方式，以达到理想的连接、防渗效果。
Technical challenges remain, including integrating a leakproof backup battery into the device and miniaturising the FREE-D’s control electronics.
存在的技术难题还很多，包括将一个防漏电的备用电池集成到心泵内，还有缩小FREE-D电子元件的体积。
The cementing job quality was successfully controlled by means of carrying out the cementing design plan of wall shear stress and the leakproof method by raising slurry viscosity.
通过实施壁面剪应力固井设计方法和提高水泥浆粘度的防漏方法，成功实现了对固井质量的控制。
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