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- Hard-nesses are Brinell Hardness Numbers. 硬度是布氏硬度.
- The Brinell hardness number of the hot rolled plates varies with measurement on the different batch of the products. 通過對熱軋中厚板在不同深度上進行布氏硬度的測定 ,表明測量深度對硬度的明顯的影響 ,並指出獲得穩定值的必要性。
- The piece of cap is made from high heat-resistant material with good heat capacity, and Brinell hardness number in 180 to 135. 帽件由有良好熱容的高耐熱材料製成，且材料的布里涅爾硬度指數在180到135之間。
- It' s hard finding time to study ( the subject ). 很難找出時間來學習（這門學問）.
- It' s hard to define exactly what has changed. 很難解釋清楚到底發生了什麽變化.
- IT'S hard to fininsh this task in less than a week. 要在不到一周的時間內完成這項工作，是件困難的事情。
- The Vickers hardness number is indicated by HV ( formerly, DPH ). 維氏硬度用HV表示（之間寫作DPH）。
- Carbide balls are usually recommended for Brinell hardness numbers greater than 500. 在布氏試驗中碳化物質地的球通常在載入500千克以上時使用。
- It』s hard to say go out there and play a game offensively. 很難說讓他們上場去打出一場美妙的進攻。
- In order to revise national standard of Metallic Materials-Brinell Hardness Test, the Brinell hardness numbers of specimens with different thickness are determined. 為修訂金屬布氏硬度試驗方法國家標準,測定了不同試樣厚度的布氏硬度值。
- It' s hard to readjust ( oneself ) to life in Britain after working abroad. 在國外工作之後; 很難重新適應英國的生活.
- Teacher Judy Garber says it」s hard to get the kids away from the computers. 加利福尼亞聖卡洛斯的阿讓代爾小學可以說是美國最先進的在線學校。
- Eath time a new axis of tavel is used, the robot』s hard stops must be changed. 每當要用到一個新的行程路徑時，自動裝置必須改變硬機械。
- The hardness number is then read on a dial on the machine. The rockwell test is very quick, and is suitable for mass inspection of parts. 然後在硬度計的刻度盤上讀出硬度數值。洛氏硬度計測試非常快捷，並且適用於部件的成批檢驗。
- The twi are so much alike that it『s hard to distinguish between them. 兩個又胞胎如此相似，以至於很難區分他們。
- The Brindle hardness number (HB, formerly BHN) is defined as the ratio of the load P to the curved surface area of the indentation. 布氏硬度值（HB,之前寫作BHN）按照載入物在凹口的曲面區域的比值來定義。
- With the hectic pace of life these days, it』s hard to find a moment of peace. 現代生活繁忙的節奏中，要找到一個平和的時刻也是很困難的。
- Use this utility to copy DOS and NetWare drivers to your computer』s hard disk. 第二章講述8098單片機的基本結構，包括硬體和軟體的組成；第三章講述中央處理器的基本概念；
- It' s hard to keep track of ( ie maintain contact with ) all one' s old school friends. 與中學時的所有老校友都保持聯繫是很困難的.
