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- The differentiation of adventitious bud from the leaf piece and bulbil piece of the plantlets in vitro was the best on MS medium supplemented with BA 1.0 mg/L and IAA 0.05 mg/L. 试管苗小叶块和小鳞茎块的不定芽分化均以MS培养基中添加1.;0mg/LBA和0
- The other side leaves piece inside 3 months effective, this month attestation not, next month attestation went. 对方开出3个月内有效，这个月认证不了，下个月认证就行了。
- 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 time of dipping leaf pieces in suspension affected not only the gene transfer efficiency, but also the inhibition by cefotaxime of the growth of Agrobacterium on explants. 叶片在菌液中的浸泡时间不仅影响基因转移效率，而且影响头孢霉素对外植体上农杆菌生长的抑制效果。
- The transformation efficiency of leaf pieces which abaxial side contacted with medium during concultivation was higher than the efficiency of leaf pieces which adaxial side contacted with medium. 共培养时，叶片远轴面与培养基接触比近轴面与培养基接触的转化效率高。
- The olive leaf is a badge of peace. 橄榄叶是和平的象征。
- 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 boy is daubing a piece of paper with red ink. 那孩子正在用红墨水在纸上乱涂。
- 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。
- 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。
- I saw him take a leaf out of the book. 我看见他从书上撕下一页。
- The maple leaf is the emblem of Canada. 枫叶是加拿大的象征。
- The piece is scored for piano and strings. 这是为钢琴、弦乐器谱的曲子。
- The trees and shrubs were in full leaf. 那些树和灌木枝叶茂盛。
- This piece of cloth was eaten by a moth. 这块布被蠹虫蛀坏了。
