使无效的

They are self-confident – leaders cannot be effective mobilisers if they do not display a high degree of confidence in themselves and in their views – but they can also be influenced and are capable of changing their minds when necessary.

同时，这种模范事例能够使员工明白如何找到工作中的问题并倾注所有积极的态度给自己的团队对于一些执行者来说，这种态度不是他们强加给员工的一个规定，而是指挥员工的一种方式他们不断的努力提高业绩——他们自己的，也属于他们的团队的，他们看到每件工作都在不断的进步他们不停的努力去理解影响机构运作的的诱因去识别能够产生价值的支点这种模式之所以重要，是因为它已超出了一句简单的&你可以做得更多&等类似的说词老板始终会要求&更多&，等到更多，但是他们没有必要将这种可以忍受和并不断增长的长期的价值的要求过分的夸大（也就是说，他们经常获得过多的价值，只需要少量的支出，而同时其他方面得到的更多，执行者们在这样的模式下增加有效的价值同时也证明他们自己正不断的提高自己的学识他们是自信的而不是实际善变的领导人，如果他们在自身和自己的信念里没有树立高度的自信心的话，但是他们同样可以被改变，并能够在适当的时候改变自己的看法当他们真的这样做的时候，他们可以清楚的了解他们改变了看法后的真相在另一个效力范围内，许多领导人为掩饰自己没有能力学习而禁止他们周围的人学习的风气虽然赞成的人居多，但是同样无效一些领导人采取了拉拉队长式的态度在没有重点寻求培养解决问题能力需要的要求的前提下，保持恰当的分配这样的领导决不会因为现有制度的不完善而有所作为

Detailed analysis shows that juristicact nullity system developed from the self-generating habits in the course of ages ofeconomic need for diminishing transaction.Psychological need for transactionsafety and economic need of diminishing transaction cost calls for co-operationgaming between parties,soliciting the self-benefit behavior in transaction not todamage other parties'interest,which is conductive to harmonized egotistic withaltruistic under transactional parties'self-constraint,as well to harmonized individualinterest with social interest.

分析表明：法律行为无效制度是人类长期经济交往中自发形成的惯例的延伸，交易安全的心理需要和降低交易成本的经济需求，在当事人之间产生合作博弈，促使交易当事人在从事&利己&行为不要损害他人，客观效果上使&利己&行为与&利他&行为在交易当事人的自我约束中的得到统一，个人利益和社会利益得到协调一致。

Inwheat intercropped with soybean not only N situation could be improved butalso P situation could be.2In intercropping,the pH of soybean rhizospherewas decreased by increasing the R-Apase activity,which could decelerate thetransforming and fixing P fertilizer.3In both monoculture and intercroppingsystem,the soil pH of rhizosphere was affected by cropping system at two Plevel which only 0.1-4mm distance from the root surface,but the effect of S-Apase activity in the rhizospher soil by cropping system was less than3mm.In effect,the rhizosphere P was really available nutrient,and applyingP to rhizosphere was effective ways to reduce the P nutrient competition.4Inwheat/soybean intercropping,the peak stage of reduction ability of roots wasthe same as that of the root growth,so that the time compensation appearedin intensity of nutrient absorption.

间套作大豆、小麦、玉米根系Apase的差异又反映出大豆利用土壤磷的潜在能力最大，而玉米最小，可见禾谷类的小麦与大豆间套后不但能改善小麦的氮素营养状况还使磷素营养也得以好转。2）间套大豆根际pH值的下降，导致磷肥施入土壤后形成〓-P的比例显著提高，转化成〓-P等难溶性磷减少，说明间套的大豆能减缓肥料磷在土壤中的转化和固定，减少磷素向无效化方向转化。3）复合群体根际土壤pH值的影响一般只发生在0.1-4mm的根际微区，而土壤磷酸酶的影响供磷与否在距根表3mm以外都无多大差异，说明根际磷才是真正有效磷，根际施磷是解决磷素竞争的有效途径。4）。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐