某些应用以 Split APKs(打包在一起的多个 .apk 文件)形式分发以优化资源。标准的 Android 安装程序无法打开它们。
McLib – Engineering Calculator for mechanical engineers. Powerful mechanical engineering calculator with ISO tools and AI assistant — all in one app.
Designed for mechanical engineering students, professionals, and educators who need accurate calculators, ISO-standard tools, and reliable engineering data on the go.
Mechanical Engineering Calculator
Solve real-world project calculations instantly:
• Heat loss calculator
• Natural gas installation calculator
• Ventilation calculator
• Pipe diameter calculator
• Circulation pump calculator
• Hydrofor system calculator
Hydraulic Calculator
• Piston and cylinder force calculator
• Pump calculator
• Accumulator calculator
• Pipe flow calculator
• Engine calculator
• Temperature and pressure loss calculator
Pneumatic Calculator
• Air consumption calculator
• Force calculator
Manufacturing & Production Calculator
• Cutting condition calculator (ISO standard)
• Pressure vessel design calculator
• Bearing calculator
• Hardness conversion tool
More Engineering Calculators
• Welding heat input calculator
• Reinforced concrete steel bar calculator
• Tolerance and fits calculator with ISO geometric tolerances
• Bernoulli equation, Young's modulus, differential pressure calculator
Mechanical Engineering Library
• Gearboxes
• Pillow blocks
• Pulleys
• Gears
• Bearings
• Bolts and Nuts
• Fans
• Measuring Tools
Engineering Material Database
• 73 engineering materials
• 15 mechanical and thermal properties per material
• Iron-carbon phase diagram
• Stress-strain diagram
Unit Converter
• 26 unit categories: length, pressure, temperature, power, mass, energy, and more
PDF Export & Calculation History
• Save calculation results as PDF
• View saved calculations anytime
AI Engineering Assistant – Powered by Gemini
• Ask mechanical engineering questions via text
• Upload images of mechanical parts for instant AI analysis
• Multi-turn engineering chat support
McLib is the go-to mechanical engineering calculator with ISO tools and AI assistant — fast, accurate, and built for real engineering work.
com.innocreek.mechanicaltools。是的!APKDER 上托管的每个文件都经过严格的安全验证。我们验证其加密签名是否与开发者的官方签名匹配,确保应用未被修改或篡改。
要安装它,您首先需要在 Android 设备的安全设置中启用“未知来源”。从 APKDER 下载 APK 文件后,点击它开始安装,并按照屏幕提示操作。
是的!一旦开发者发布 McLib – Engineering Calculator 的新版本,我们就会在 APKDER 上更新并发布。您只需下载并覆盖安装新的 APK,无需删除旧版本,也不会丢失应用数据。
此 APK 下载 100% 安全。我们验证文件的加密签名与官方开发者的凭据相匹配。无任何修改或广告注入。