常到的

The article with the intercept outside aerosphere implement to study a target, consider amount of miss the target is very small approach rate mediumly with intercept process bigger, be aimed at engine to be able to offer constant thrust only, can be started for many times and have pulse job state, and do not have change the character of thrust job status, apply slant buy scale guides brought a law to design agree with the switch threshold value that course controls engine.

本文以大气层外拦截器为探究对象，考虑到脱靶量很小和拦截过程中的接近速度比较大，针对发动机只能提供常推力，能多次启动并具有脉冲工作状态，且不具有变推力工作状态的特性，运用偏置比例导引律设计了适合于轨控发动机的开关阈值。

Generally, the relative affectionateness level of junior middle school students is relatively low; parents can\'t take on their charges effectively; social distance is relatively far between teacher and students; student like the class but unacceptable; Internet has infiltrated in daily life; the institution and faculty provided by community is not enough; partner is indispensable in junior middle school students\' life and new characters about the intercourse appeared. Each group has different influence on social cognition.

研究发现：当前初中生家庭亲情水平普遍较低；父母不能有效承担自己的角色；师生社会距离较远；学生喜欢班级但不被接纳；网络已经渗透到同常生活；社区提供的活动机构和设施并不丰富；同伴在初中生生活中仍然不可或缺，交往具有新的特征。

Literature Research The etiological factors of POF are not still clear. The changes of sites and numbers in X chromatosome, X; autosome translocations, a forkhead transcription factor gene (FOXL2) mutations, FRAXA premutations and inhibits gene mutations are found in POF patients, so genetic disorders have been thought to be involved. Irradiation, chemotherapy or pelvic operations can damage ovaries and cause ovarian atrophy and failure, so it is thought one factor of POF.

一、文献研究 POF的确切病因目前尚不清楚，从POF患者体内检测到X染色体上位点和数目的变化，X染色体与常染色体间的平衡易位，脆性X基因前突变，FOXL2基因突变，抑制素基因突变等，故认为POF发生与遗传因素有关；由于放射、化疗或盆腔手术等可损伤卵巢，导致卵巢萎缩，出现卵巢衰竭，故也是导致POF的因素之一。

Ms. Bache admits the children fall out of trees 'quite often'-- but that she doesn't let them climb higher than 6 feet, the cutoff point for her insurance policy.

她承认，孩子们从树上掉下来是常有的事，不过，她不允许他们爬到6英尺以上的地方──这是她为孩子们购买的保险单上规定的最大高度。

Because the diffusive term is discretized with divided forward difference or divided backward difference according to the sign of convection velocity, these methods keep first order accuracy for diffusive term.

3.2考虑规则网格上的一维和二维定常型对流占优扩散问题，离散方法采用了有限体积方法及普通的有限差分方法，基本离散思想是将对流项提高到二阶精度，扩散项则根据对流速度的方向决定采用向前或向后差商离散。

His speech included the offers of friendship and conciliation to China with which he usually tempers criticism of its rule.

他的演讲中谈到他对中国的友好和容让，他常对中国的制度发火指责。

Taguchi method is the popular method for industrialist to production design and parametric design. It can reduce the cost and variance on the condition of limited resource.

田口方法则是业界常使用於产品设计、参数设计的方法，它可以很有效率的在有限资源下达到降低变异、减少成本的稳健品质目的。

"In the most common, epiphyseal dysplasia, the ends of children's bone s grow and harden very slowly; dwarfism often results, and degenerative joint disease usually develops by middle age."

骨发育异常是在儿童发育期并不罕见的骨疾患，患儿骨的生长及骨化非常缓慢，常见侏儒症，亦可能只见下肢短小，到中年常发展为退行性关节疾患。

Astrogation held her in stationary orbit for what seemed an eternity, and then the fortress was allowed to begin its slow nerve-racking descent to the surface of Mars.

Astrogation把她自己固定在定常轨道上，XXXXX，然后，堡垒被允许开始缓慢的，令人担心的降落到火星表面。

Generally, the hearing did not recovery to an availabel level in patients either with silastic film or cartilage slice implants.

再次手术取出植入物时发现，硅片常被包裹在纤维结缔组织形成的包囊中，其周围仍有广泛粘连；同种异体软骨片植入者一般无这种包囊，周围粘连亦较轻，但无论是硅片还是软骨片植入或其它方法手术，它们的术后听力一般都达不到应用水平，其远期疗效更差。

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％。