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Some essential trace elements were reported to be involved in the normal bone metabolism. Nowadays rare earth elements are widely used in many fields and more and more rare earth elements enter the environment and food chains They are enriched in bone and difficult to be excreted. Because the similarity between rare earth ions (Ln3+) and Ca2+, they will intervene and regulate bone formation and remodeling.

骨骼的正常代谢涉及多种金属离子，随着稀土的应用，通过环境和经由食物链等渠道进入人体内的稀土量也有所增加，并且在骨组织中相对富集且难排出；由于稀土与钙离子的相似性，它们将干预和调控骨的形成与再造。

Some essential trace elements were reported to be involved in the normal bone metabolism. Nowadays rare earth elements are widely used in many fields and more and more rare earth elements enter the environment and food chains. They are enriched in bone and difficult to be excreted. Because the similarity between rare earth ions Ln(superscript 3+ and Ca(superscript 2+), they will intervene and regulate bone formation and remodeling.

骨骼的正常代谢涉及多种金属离子，随着稀土的应用，通过环境和经由食物链等渠道进入人体内的稀土量也有所增加，并且在骨组织中相对富集且难排出；由于稀土与钙离子的相似性，它们将干预和调控骨的形成与再造。

The 180bp amplification fragment was present in Wellspur Delicious, not in starking from which the former mutated, suggesting that retrotransposon activity might be involved in the bud mutation of Wellspur Delicious.

此外，在红星的芽变品种矮威尔中检测到了一条约180bp的特异带，表明该品种的芽变与逆转座子的插入突变可能有一定关系。

At the same time, I presided over the drafting of a national plant hollow plastic molding machine technical standards JB/T8539-1997, and three customers involved in the drafting of a "packaging of dangerous goods containers packed with plastic barrels," the national standard GB18191-2000, in the development of plastic hollow-taking In the forefront of the domestic counterparts. 2002, I developed the plastic factory production line with drip irrigation, plastic-coated steel pipe extrusion unit, wood-plastic molding equipment, and other new products, once again shows the excellence of our plant products research and development capabilities.

同时，我厂主持起草了国家塑料中空成型机技术标准JB/T8539-1997，并与三家用户参与起草了《包装容器危险品包装用塑料桶》国家标准GB18191-2000，在塑料中空机开发方面走在了国内同行的前列。2002年，我厂开发的塑料滴灌带生产线、钢管包覆塑料挤出机组、木塑成型设备等新产品，又一次显示了我厂卓越的产品研发能力。

Fifthly, rent-out farmers' protection of cultivation sustenability and control of management right of farmland, and rent-in farmers' demand of absolute management right all rest with bargainers' caculation of bargaining cost and income. Sixthly, quantity of farmland that involved in rental market will experience the process which increacing first and reducing afterwards in future.

转出农地的农户是否对农地利用的可持续性进行保护和对农地的经营权进行紧密控制，以及转入农地的农户是否具有对农地经营权的独立性和完整性的要求都主要取决于交易者对交易成本和交易收益的衡量。

CIRe has been involved in Hong Kong and Macau for a very long time, and as such its professionals in Hong Kong have tremendous and unique experience, know-how and in-depth knowledge of these two markets, which represents a key competitive advantage.

中再国际长久以来一直立足香港及澳门，因此其驻香港的专业人员对这两个市场拥有丰富及独特的经验、技术能力及深入的认识，也是其一项主要的竞争优势。

Being involved in extra-curricular activities, particularly the Construction Management Technology student group provides an opportunity for students in different stages in their education to network with upper and lower classmen.

参与到课外活动，特别是施工管理技术的学生组，为学生在他们教育过程的不同阶段中与高年级和低年级建立关系网提供了一个机会。

Being involved in extra-curricular activities, particularly the Construction Management Technology student group provides an opportunity for students in different stages in their education to network with upper and lower classmen.

刚毕业的学生可能会是很好的资源，作为课外活动的参与，特别是施工管理技术组提供的学生对他们的教育是在不同阶段的，这些学生还有机会到网络上，与低年级一起竞争。

Their students' problematic internet usage: Over 70% of the teachers thought that some students were over-involved in using the Internet in general, developing cyber-relationships, and staying in the cybercafes and playing online games.

二、学生网路使用现况问题之范围网路使用问题之现况：七成以上教师认为中学生在网路使用所衍生之行为是相当普遍且严重的。

These results showed that B directly involved in the polar auxin transport process.5. Under control condition, decapitation resulted in the rapid increase of cytokinins concentrations in the shoot and the release of lateral bud of pea pl

对缺硼的豌豆植株去顶也可以导致细胞分裂素水平的增加，但变化的幅度明显小于对照条件下的变化，表明由于缺硼影响了激素的水平从而减弱了顶端优势。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。