来自 昏昏睡睡HSE · From Drowsy HSE CSP DAILY LEARNING · DAY 84

人机工程学基础 · 术语精讲 | Ergonomics Fundamentals · Glossary Focus

第 16 块 · Domain 1 · 安全原理高级应用 · 25%Block 16 · Domain 1 · Advanced Application of Safety Principles · 25%第 3 / 5 课 · 术语精讲Lesson 3 of 5 · Glossary Focus

本课只做一件事：把「人机工程学基础」的 6 个高频英文术语从「眼熟」变成「能用」：定义、易混、例句。

Turn the six high-frequency terms of Ergonomics Fundamentals from familiar to usable: definition, look-alike, example.

本课不涉及：不扩到别的板块的术语，也不考题型技巧。
Not covered here: No terms from other blocks, no question-technique work.

本课目标 | Learning objectives

  1. 为每个术语说出定义，而不是只给中文对应词
  2. 指出每一对易混词差在哪一个限定条件上
  3. 把每个术语放进一句真实的现场英文里

  • Define each term rather than translate it
  • Point to the exact qualifier that separates each look-alike pair
  • Put each term into one real site sentence

    • 图片预览 / Photo preview

    图片经过压缩后保存在当前浏览器。导出失败时，可在下方预览图片上长按保存。/ The photo is compressed and stored in this browser. If download fails, long-press the preview below to save it.

    术语详解 | Glossary in depth

    Musculoskeletal Disorder (MSD) / 肌肉骨骼疾患
    肌肉、神经、肌腱、关节、软骨与椎间盘的累积性损伤：腰背痛、腕管综合征、腱鞘炎等。
    Cumulative injury to muscles, nerves, tendons, joints, cartilage and discs: back pain, carpal tunnel, tendinitis.
    易混 / Easily confused：与急性外伤不同：MSD 没有单一事件起点，恢复期长、易复发。
    Not an acute trauma: MSDs have no single onset event and relapse easily.
    例句 / In a sentence：Wrist tingling is an early MSD signal. / 手腕发麻是 MSD 早期信号。
    NIOSH Lifting Equation / NIOSH 提举方程
    RWL = 51 lb × 六项条件乘数（HM/VM/DM/AM/FM/CM），用于评估双手对称提举任务。
    RWL = 51 lb × six multipliers (HM/VM/DM/AM/FM/CM) for two-handed symmetric lifting tasks.
    易混 / Easily confused：与「最大承重」不同：它给的是「推荐极限」，且只适用于双向对称、站立、宽幅稳定的提举。
    Not a maximum: it is a recommended limit, valid only for symmetric, standing, stable lifts.
    例句 / In a sentence：The equation returned an RWL of 9 kg. / 方程算出的 RWL 是 9 公斤。
    Lifting Index (LI) / 提举指数
    实际载荷 ÷ RWL；≤ 1.0 可接受，> 2.0 高风险。
    Load ÷ RWL; at or below 1.0 acceptable, above 2.0 high risk.
    易混 / Easily confused：与安全系数不同：LI 大于 1 即超出推荐极限，不是「留了余量」。
    Not a safety factor: above 1.0 the recommended limit is already exceeded.
    例句 / In a sentence：An LI of 2.4 put the task on the priority list. / LI 2.4 让该任务进入优先整改清单。
    Neutral Posture / 中立姿势
    关节处于自然对位、肌腱与韧带受力最小的姿势：肘 90°、腕平直、脊柱自然曲度。
    Joint positions where tendons and ligaments carry least load: elbows 90°, wrists straight, spine in natural curves.
    易混 / Easily confused：与「站直」不同：中立姿势按关节定义，坐姿站姿都有各自的中立位。
    Not 'standing straight': neutral is defined joint by joint, seated or standing.
    例句 / In a sentence：The workstation now allows neutral wrist posture. / 工位改造后手腕可保持中立。
    Carpal Tunnel Syndrome / 腕管综合征
    正中神经在腕管内受压：麻木、刺痛、夜间加重；与腕部反复偏转与振动相关。
    Median nerve compression at the wrist: tingling, numbness, worse at night; linked to repeated wrist deviation and vibration.
    易混 / Easily confused：与「腱鞘炎」不同：腱鞘炎是肌腱炎症（痛在动作），腕管是神经受压（麻在分布区）。
    Not tendinitis: tendinitis is tendon pain on motion; CTS is nerve numbness in its distribution.
    例句 / In a sentence：Night-time numbness suggests carpal tunnel. / 夜间麻木提示腕管综合征。
    Hand-Arm Vibration Syndrome (HAVS) / 手臂振动综合征
    长期使用振动工具导致的血管与神经损伤：白指、麻木、握力下降，不可逆。
    Vascular and nerve damage from prolonged tool vibration: white finger, numbness, grip loss — irreversible.
    易混 / Easily confused：与「手累」不同：HAVS 是不可逆的职业病，出现白指即不可恢复。
    Not tired hands: HAVS is irreversible — white finger does not recover.
    例句 / In a sentence：Anti-vibration gloves mitigate, never cure, HAVS risk. / 防振手套只能缓解，不能消除 HAVS 风险。

    情景自测 | Scenario check

    本课理解Lesson comprehension

    这道题考什么：考 LI 的判读边界：> 1.0 已经越线。
    Tests LI interpretation: past 1.0, the line is already crossed.

    某任务 LI = 1.4。正确的表述是？

    A task has an LI of 1.4. The correct statement is?

    自编练习题，不是 BCSP 官方真题，也不能用来预测分数。 / Original practice item, not an official BCSP exam question.

    动手练 | Practice

    1. 为 MSD、CTS、HAVS 各写一句「谁最容易得」。
    Write one line each for MSD, CTS and HAVS: who is most at risk.

    学习打卡与笔记 | Progress & notes

    已完成 0/4 项 / 0/4 tasks complete

    连续学习 / Learning streak: 0 天 / 0 days

    进度保存在当前浏览器，不会自动跨设备同步。/ Progress is stored in this browser only.

    PNG 学习记录预览；可长按图片保存 / PNG card preview; long-press to save

    可靠来源 | Official references

    BCSP — CSP Examination Blueprint (CSP11)

    BCSP — Official Self-Assessments

    BCSP — Certified Safety Professional (CSP)

    Pearson VUE — CSP 考试预约 / Scheduling

    本课为一般性学习资料，不替代现场专业评估、法规要求或组织程序。/ Educational content only.

    ← 返回课程目录 / Back to catalog