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- However, it seemed better for nucleated pearl production to clean the mantle piece with sterilized sponge block or absorbent tampon than washing according to the appearance data. 这些差异，从统计学角度看没有明显区别，但从表观数据可见，无论是成珠率还是优珠率，育珠细胞小片用海绵块擦和脱脂棉球擦比不擦明显要高，表明小片不擦不利于有核珍珠的培育。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- I need a piece of string to tie this parcel up. 我需要一根细绳把这包裹扎起来。
- The earth has a core and a mantle around it. 地球的中心是地核，地核的周围是地幔。
- The mountain was covered with a mantle of snow. 山上覆盖着一层雪。
- She was hit by a piece of falling masonry. 她被建筑物上落下的一块石头砸着了。
- The relutionship between the supplier and the accepter of the mantle piece and its effects on pearl quality 小片与蚌间的关系对珍珠质量的影响
- Mantle drove in two runs with a single and a sacrifice fly. 曼特耳以一个一垒打和一高飞牺牲打来使二人跑垒得分。
- The boy is daubing a piece of paper with red ink. 那孩子正在用红墨水在纸上乱涂。
- A covering resembling a cloak or mantle. 斗篷状覆盖物一种类似长袍或斗蓬的遮盖物
- This piece of glass seems to be part of a lamp. 这片玻璃似乎是一盏灯的一部分。
- Key words: Hyriopsis cumingii; mantle piece; pearl nucleus; visceral mass; nucleated pearl quality 作者简介:黄惟灏（1945-），男，浙江慈溪人，高级工程师，研究方向：有核珍珠的研究
- Would you please give me a piece of paper? 能给我一张纸吗？
- I think I can do with one more piece. 我想我还能再吃一块。
- She tore off a piece of music and then went out. 她匆匆演奏了一支曲子就走出去了。
- Keep that piece of wood; it may come in useful. 留着那块木头，它可能会有用的。
- The house is now something of a museum piece. 这座房子现在几乎可以说是珍贵文物了。
- The piece is scored for piano and strings. 这是为钢琴、弦乐器谱的曲子。
- This piece of cloth was eaten by a moth. 这块布被蠹虫蛀坏了。
- The earth have a core and a mantle around it. 地球的中心是地核，地核的周围是地幔。
