This research indicated that replacement of the oxygen atom in the suitable size crown ether by sulfur atom will lead to great selectivity to Hg~(2+).
这一研究结果表明，在合适大小的冠醚的中用亲Hg~(2+)的硫原子取代氧原子可以得到很好的选择性。
Lead found in these materials is subject to very little leaching over the life of an appliance or crown.
这些材料中的铅在牙冠和器具的正常使用下几乎是不会渗出来的。
The glass transition temperature of the polymers carrying crown ethers as side groups increased when alkali metal ions were added, because the oxygen-metal coordination will lead to the polymer to have order structure.
含有冠醚侧链的高分子在加入碱金属离子后，由于冠醚与金属离子的络合作用导致高分子形成有序结构而刚性增强，其玻璃化转变温度明显提高。
Our country more than foreign varieties of vegetables, such as Shanghai Qing's rape, lettuce, crown daisy, water celery, etc., are very delicious vegetable, but due to excessive pesticide and farmers are too scattered and there are no agencies to control, but also lead to varying quality.
我们国家的蔬菜品种比国外多，比如说上海青的油菜、莴笋、茼蒿，水芹菜等，都是非常美味的蔬菜，然而由于农药超标以及农户太散没有机构来管制，也导致品质不一。
This project could become a jewel in your crown and lead you to something else that's bigger and better.
这个项目可能会是你王冠上耀眼的宝石并引导你走向更大更好的成就。
The increase of crown/root ratio was mainly induced by EARR and alveolar crest loss, which lead to shorter clinical root and longer clinical crown.
冠根比增大主要由于牙根尖吸收和牙槽嵴吸收，导致临床根长变短，临床冠长增加而引起。
When the secondary lining of the lead tunnel is pouring full-face and the latter tunnel's follows, the bottom leave and the settlement of arc crown decrease, the horizontal convergence increases and the stability of surrounding rock is intensified.
二次衬砌分先后洞全断面一次浇筑时，围岩的底板隆起和拱顶沉降减小，边墙水平收敛增大，围岩稳定性增强。
Lead (ⅱ) ionselective PVC membrane electrode based on saturated urushiol crown ether
饱和漆酚冠醚PVC膜铅（Ⅱ）离子选择电极的研究
France narrowly avoided revolution at the end of the18th centaury, and the death of last Bourbon King lead to the crown passing to the Spanish branch of the family.
世纪末叶，法国谨慎地避免了革命，随着波旁王朝最后一位国王辞世，王冠转移到了王室西班牙分支。
A new type of sorbents based on crown ether (cryptate) - heteropoly acid ⅱ. analytical properties of the crown ETHER-PHOSPHOMOLYBDIC acid in trace lead determination
新型冠醚（穴醚）-杂多酸吸附剂研究Ⅱ.冠醚-HPMo用于微量铅分析的性能探讨
The concentration of trace chromium, cadmium and lead in filtered flue gas was determined with dibenzo-18 crown-6 cross-linked Schiff chitosan by graphite furnace atomic absorption spectrometry.
以二苯并18-冠-6交联席夫碱型壳聚糖作为新型吸附剂，用石墨炉原子吸收分光光度法测定了经过滤处理后的燃煤烟气中痕量铬、镉和铅的含量。
The main varieties are: Phlox paniculata hardy varieties of fine distinctions and problems dozen Phlox four by Ju Netherlands-ju (clove red, crown, purple, blue dream) Germany Sedum yellow Germany Sedum, Germany Sedum leaves, red flowers Babao Sedum, Rhodiola Babao powder, blue tail Ye days Notoginseng Sedum, streets paved with gold Sedum, Sedum, by Carnation, the United States to spend evening primrose, Tradescantia hairless, Germany Iris, Iris, Butterfly Orchid, Iris tenuifolia, small beauty Iris Hong Iris root, Hosta The doll Hemerocallis, day lily flowers United States, yellow calamus, Lythrum salicaria, false lead, Ju, Shegan, Jin-Han No.
主要品种有：宿根耐寒福禄考精优品种十几种及丛生福禄考四种，地被菊荷兰菊德国景天德国黄花景天、德国红叶景天、八宝红花景天、八宝粉红景天、鼠尾蓝叶景天、三七景天、遍地黄金景天、佛甲草、地被石竹、美国大花月见草、无毛紫露草、德国鸢尾、兰蝴蝶鸢尾、细叶鸢尾、小美人鸢尾、香根鸢尾、玉簪金娃娃萱草，美国大花萱草，黄昌蒲、千屈菜、假龙头、蛇鞭菊、射干、锦寒(1、2号)月季、马莲、黑心菊、松果菊、松塔景天、北景天、鼠尾草、马蔺、耧斗菜、荚果蕨、大花剪秋罗、卧茎景天、红宝石萱草、狼尾草、铃兰、落新妇等。
The increase of crown / root ratio was mainly induced by EARR and alveolar crest loss, which lead to shorter clinical root and longer clinical crown.
冠根比增大主要由于牙根尖吸收和牙槽嵴吸收，导致临床根长变短，临床冠长增加而引起。
Dai Zhonghui Teacher are Yamaha trumpet virtuoso, known as the Chinese characters The first trumpet, the lead as the tournament director of the jury to determine the contest fair and just principle of openness and invited four well-known pipe-chuan Yin music professor who is also crown the western part of the gold contest judges to ensure that the contest strong and attractive.
教师戴中晖小号演奏家都是雅马哈，作为第一个小号汉字众所周知，作为赛事总监导致陪审团来决定比赛的公平和公正公开的原则，邀请了四位著名管传银谁是音乐系教授还冠的黄金竞赛法官西部，以确保比赛的强大吸引力。