health protection的用法和樣例：
例句
- Health undertakings have been developing steadily.
衛生事業穩步發展。 - Public health developed continuously.
衛生事業不斷發展。 - The discharge of uncontrollable ammonia was determined by the antiinferenee of ground consistency.A practical and feasible health protection zone was determined.
採用地面濃度反推法，計算出氨的無組織排放量，從而確定出可行的大型氮肥廠衛生防護距離。
