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- double heart wood 复心材
- Cottonwood, maple ,pinewood ,birch, miscellaneous tree,trimed log or heart wood of clamp-shaft remained. 杨木，枫木，松木，榆木，杂木，修直以后的原木或有卡剩下的木芯
- Wet heart wood,an abnormality occuring in tree growth,is a critical problem in poplar wood processing and utilization. 湿心材是树木生长中的一种反常现象 ,在杨树中表现甚为突出 ,是杨树加工利用中的一大难题。
- Cottonwood,maple,pinewood,trimed,birch,miscellaneous tree,log or heart wood of clamp-shaft remained. 杨木，枫木，松木，按木，榆木，各种硬质木材或修直以后的原木或有卡剩下的木芯
- Inferior lumber or yellow heart wood not only yellow brown of colour and lustre, woodiness is very loose also. 劣质木材或黄心木等不仅色泽黄褐，木质也十分松软。
- Chinese real love of friends, read your heart wood, they immediately go on short deflated go up and funny. 真正热爱中文的朋友，读读木心吧，他们立刻矮下去瘪下去并好笑起来。
- Of Zebulun, such as went forth to battle, expert in war, with all instruments of war, fifty thousand, which could keep rank: they were not of double heart. 西布伦支派,能上阵用各样兵器打仗,行伍整齐,不生二心的有五万人。
- The secondary growth includes several consecutive processes such as vascular tissue differentiation, secondary cell wall deposition, lignification, PCD and heart wood formation. 次生生长包括维管组织形成、次生细胞壁形成、木质化、PCD以及心材形成等过程。
- Polyphenol compounds from heart wood of 15 years old E. leichow No. 1 contained mainly hydrolysable tannins (5. 98%)and partly condensed tannins (1. 91%). 15年生雷林一号桉木心材中的多酚类化合物以水解单宁为主（占原料的5．98%25），其次为缩合单宁（1．91%25）。稀碱预处理桉木，可除去大部分多酚类化合物。
- He is a man of double heart. 他是一个不诚实的人。
- The agency was sharply criticized for its handling of Merck &Co Inc's arthritis pill Vioxx, which the company withdrew in 2004 after research found it doubled heart attack and stroke risk. 该部门曾经因为对默克公司的关节炎药物万络处理不当而遭致尖锐的批评。默克公司研究发现该药物会使心脏病发作和中风的风险增倍， 2004年该公司撤回了此药。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
