In addition, there is a "pseudo-myopia", which due to excessive use of regulatory role For example, in children, adolescents reading, the reading with the eye too close a distance, it is bound to increase the regulatory role of the eye, causing ciliary muscle function to enhance or spasm, this occurrence of myopia in school, and family to learn some of the irrational factors , for example, a natural classroom lighting, lighting, lighting, seating, seated, excessive use eyes, pay attention to eye health, eye fatigue is closely related to myopia is divided into mild myopia (-3D below); moderate myopia (-- 3D - 6D),-6D or more as high myopia, myopia authenticity required to wear appropriate glasses, children and adolescents need to be fully dilated in the absence of regulating state optometry, refraction measured by the eye itself, after the age of 18 , in the myopia progression-free circumstances, do radial keratotomy to correct myopia.

此外尚有一種"假性近視"精品久久AV无码一区二区三区，其因過度運用調(diào)節(jié)作用，例如在兒童、青少年讀書時，讀物與眼球的距離過于接近a黄视频，勢必增加眼球的調(diào)節(jié)作用，引起睫狀肌功能增強或痙攣一级α片屄，這種近視的發(fā)生與在學校以及家庭學習的一些不合理因素有關(guān)，例如教室的自然采光久久99精品久久久久久nb，燈光照明操干无码在线视频，坐位、坐姿黄色A级毛片网站网址，過度用眼男人天堂网站网址，不注意用眼衛(wèi)生、眼疲勞有密切關(guān)系播放一级毛片免费，近視眼又分為輕度近視（－3D以下）黄片你懂的；中度近視（－3D—－6D），－6D以上者為高度近視在线国产小黄片，真性近視需配戴合適的眼鏡欧美日韩A片免费网站，兒童和青少年均需充分散瞳，在無調(diào)節(jié)狀態(tài)下驗光大陆日韩内地欧美在线，測出眼球本身的屈光度欧美色色网站，18歲以后，在近視無進展的情況下国产精品JIZZ在线观看，可做放射狀角膜切開術(shù)亚洲AAAV欧美AAAAV，以矯正近視。

High temperature of contact and junction point causes an accident due to poor contact of knife switch s contact and connector of high voltage switch cabinet and impact of load.

高壓開關(guān)柜刀閘觸頭92看片婬黄大片一一、出線電纜接頭往往因接觸不良欧美性色爱图、負荷沖擊等因素引起觸點和接點溫度過高，造成事故發(fā)生黄片国产一级欧美操逼的免费观看。

Afoul of ;collide ;collision ;encounter with ;fallen aboard of ;go foul of ;hit against ;impinge up on ;impinged on ;impinged up on ;knock up against

云中不同大小的云滴或降水粒子由于降落末速度不同等因素而引起的撞擊黄色网站在线看免费版。

Worshiping is an important factor for KOA developing in Hui patients.

禮拜是KOA病變進展的相關(guān)因素，應引起重視欧美69囗交视频。

By studying on the time budgets of white-headed langur, Presbytis leucocephalus, the interior and environmental factors which caused the time budgets of the population were discussed.

通過白頭葉猴活動時間分配的研究国产免费黃色视频，探討引起種群活動時間分配的內(nèi)在和環(huán)境因素。

Except the something fortify, the complication of disturb in the dispersion of attenuation data are also graveness, so the evolvement of this area also becomes lentitude.

由于除介質(zhì)粘彈性影響外姐姐直播App，其它的干擾因素引起地表波的散射問題也很嚴重亚洲欧美日韩黄色视频，使得這個領(lǐng)域的進展相對緩慢日韩最新无码资源站AV。

Risks caused by many uncertainty factors in levee engineering are cared about by people.

堤防工程中因各種不確定性因素引起的風險正日益受到人們的關(guān)注。

The pupils had higher score on emotional measure have shown lower learing score.In this paper,we want to demonstrate that the pupil has high school score is not only based on high...

本研究顯示欧美成人网1314WWW，高學業(yè)兒童的學習成績不僅基于較高的智力免费一看一毛片，兒童積極的學業(yè)情感也是重要的心理因素，應引起教育者的注意色色爱爱视频。

The factors that influence contour accuracy of the machine are analyzed. The equation ofcontour error due to feeding axis's dynamics is derived by circular contour motion of themachine, and a model of contour error is proposed.

五1024你懂的金沙人妻片、研究了引起輪廓誤差的各種因素，以圓弧輪廓為例推導了聯(lián)動坐標軸動態(tài)特性對輪廓誤差的影響公式好吊色中文字幕精品在线观看，提出了輪廓誤差模型欧美日韩α片在线观看。

Tumor metastasis, the main characteristic of malignance tumor, is the primary cause of death for most cancer patients.

腫瘤轉(zhuǎn)移是惡性腫瘤的主要特征，是引起癌癥患者死亡的首要因素A片性爱视频网址。