三角式 meaning in English

trigonometric expression

And the boudoir-grand piano, beautifully dusted, hermetically sealed as ever .
还有这座小三角式钢琴，收拾得洁无纤尘，照旧严封固扃。
Mining equipment . circular wire ropes for hoisting . 6 triangular strand types on central textile core
采矿设备.提升用圆钢丝缆.三角式6股线芯型
On the basis of existing research , and integration with the practicalities of optimal allocation in oil extraction factory , this paper brought forward a triangular dss architecture based on b / s model , combined com component with model base so as to implement the model management system , and used several tools to develop the different models
在国内外已有的研究基础上,结合采油厂的优化配置的实际情况,本文提出了基于b / s架构的三角式的系统体系结构、结合com组件和模型字典的模型库子系统的实现方法、利用多种开发工具实现不同类型的模型的方法。