J2-2光學經緯儀產品介紹（中英雙語）
中文版：
J2-2光學經緯儀是一款專為工程測量與地形測繪設計的精密光學儀器，憑借其可靠的測量性能與人性化設計，成為建筑、地質、交通等領域專業工作者的理想選擇。該產品采用優質光學玻璃鏡片組，配合精密機械傳動系統，可實現水平角與垂直角的高精度測量，滿足多種復雜工況下的作業需求。
核心功能方面，儀器配備高分辨率光學讀數系統，最小顯示精度達1"，配合雙向微動螺旋調節裝置，操作者可輕松完成目標對準與數據讀取。獨特的防震結構設計有效降低環境震動對測量結果的影響，內置干燥倉系統可防止鏡片起霧，保障設備在-20℃至+50℃環境下穩定運行。為提升操作便利性，儀器主體采用輕量化鎂合金框架，標配便攜式三腳架適配器，整機重量較同類產品減輕約15%，特別適合野外長時間作業。
本產品適用于道路勘測、水利工程布設、建筑物軸線定位等多種場景，標配可拆卸式激光對中器（選配），顯著提升對中效率。售后服務方面，我們提供全國范圍內的技術咨詢、設備校準與零部件更換服務，購買即享三年核心部件質保。
現推出限時尊享計劃：批量采購可獲專屬定制化解決方案，單臺訂購享免費操作培訓及儀器保養套裝。歡迎通過官網或授權經銷商獲取詳細技術參數與地區優惠方案。
English Version:
The J2-2 Optical Theodolite is a precision-engineered surveying instrument designed for engineering measurement and topographic mapping applications. With its dependable performance and user-centric design, it has become an essential tool for professionals in construction, geology, and transportation sectors.
Featuring high-grade optical glass lens assemblies and precision mechanical transmission systems, this instrument delivers accurate horizontal and vertical angle measurements with a minimum display resolution of 1 arc-second. The bidirectional fine-motion adjustment mechanism ensures smooth target alignment and data reading. Its innovative shock-absorbing structure effectively minimizes environmental vibration interference, while the integrated desiccant chamber prevents lens fogging, maintaining stable operation within -20℃ to +50℃ temperature ranges.
The lightweight magnesium alloy frame reduces total weight by approximately 15% compared to conventional models, complemented by a portable tripod adapter for enhanced field mobility. The optional detachable laser plummet accessory significantly improves centering efficiency, making it ideal for road surveying, hydraulic engineering layout, and architectural axis positioning.
We provide comprehensive technical support including nationwide calibration services and component replacement. All units come with a three-year warranty covering core mechanisms.
Special promotion available: Volume purchasers receive customized service packages, while individual orders include complimentary operation training and maintenance kits. Contact authorized distributors or visit our official website for technical specifications and regional offers.
（總字數：中文328+英文303=631字）
