Objective: To establish the optimal height of the strut-graft for clinical surgery, this study analyzed the effect of change in strut-graft height on the lordotic curvatures and immediate biomechanical stability of the cervical spine on which corpectomy and strut-graft reconstruction with different height was performed.

目的：研究中下頸椎前路單椎體次全切除減壓后不同撐開高度支撐植骨對頸椎曲度和頸椎即刻運(yùn)動穩(wěn)定性的影響外国一级黄色网站，為臨床手術(shù)確定合適的植骨高度提供參考国产区无码激情。

A new method and the principle is presented for plotting the critical metacentric height curve which meets IMOs intact stability criteria and weather criteria,and the critical metacentric height curve which meets 1976 SOLAS intact stability criteria. And the critical metacentric height curve is used in the Stability check of bulk grain carriers in accordance with the stability rules for bulk grain carriers.

本文還具體給出了滿足IMO完整穩(wěn)性和天氣衡準(zhǔn)的臨界初穩(wěn)性高度的求作方法，以及滿足1976 SOLAS公約散裝谷物船舶的穩(wěn)性衡準(zhǔn)要求的臨界初穩(wěn)性高度的原理和求作方法国产另类亚洲，并將由此得到的臨界初穩(wěn)性高度曲線綜合運(yùn)用到散裝谷物船舶的穩(wěn)性校核国产欧美一区二区在线播放。

Methods The subjects were 2 550 children aged 17~20 years from five cities of China.The adult height of children was measured and the midparental height was determined by the height self-reported of childrens parent.

研究樣本為達(dá)到成年身高的2 550名（男1 189名，女1 361名）中國廣州市久久九九99精品网站成年、上海市国产精品第13页、溫州市、大連市天堂网av资源www、石家莊市五城市的正常兒童美女免费黄色网站a。

For nearly fifty years, concept of normal height has been adopted in China. However, thanks to the rapid development in geodesy and other computation technology, the HASL can be computed as accurately as the normal height. Particularly, the HASL is very fit to the case of wide and high multimountain areas of China. This ideal of orthometric height would be accepted by many people.

盡管近50年來我國仍采用正常高系統(tǒng)，但隨著時代的發(fā)展黄片、com好吊操视频、研究的深入，如今推求正高的精度又與正常高的非常接近国产真实偷人视频在线看，況且它又符合我國幅員廣大的高海拔山區(qū)的實(shí)際情況自拍偷拍15，因此用正高代替正常高的觀念將會被人們所接受。

The normal height and orthometric height of the snow surface of the QF summit are 8846.67 m and 8847.93 m respectively. The orthometric height of rock surface of the QF summit is 8844.43 m, and the thickness of the snow-ice layer on the summit of the QF is 3.50 m.

由此測得珠峰峰頂雪面正常高為8846.67m一级片的视频，珠峰峰頂雪面正高為8847.93m欧美精品一区二区观看，珠峰峰頂巖面正高為8844.43m，珠峰峰頂相應(yīng)點(diǎn)的冰雪層厚度為3.50m久久2视频。

This study thoroughly inspects reciprocal method and leap-frog method of EDM trigonometric leveling along with relationship between EDM height, ellipsoid height, and orthometric height. An experimental area with 200m, 400m and 600m span intervals were set up with vertical angle error ±1.5〞and EDM error ±（2mm+2×10-6×Smm）.

本研究規(guī)劃實(shí)驗(yàn)區(qū)實(shí)地針對200m99超碰免费、400m、600m三種測段長欧美伊人久久大香线蕉综合69，采用之全測站儀之垂直角中誤差為±1.5〞一本道在线免费观看无码一区二区，測距中誤差為±（2mm+2×10-6×Smm），進(jìn)行EDM三角高程測量日韩妓女精品影院视频播放在线观看，并對測量方法及觀測成果精度進(jìn)行分析亚洲精品永久中文字幕，實(shí)際探討短距離EDM三角高程代替水準(zhǔn)測量的可能性。

They also noted that a radiograph of the hand is useful for determiningwhether the digital phalangeal epiphyses are capped (post-peak height elocity) or uncapped (pre-peak height elocity) because capping strongly correlates with the timing of peak height elocity, an important parameter to study when predicting cure progression.Dimeglio et al.

還發(fā)現(xiàn)手部平片在確認(rèn)手指近端骨骺擴(kuò)張或未擴(kuò)張方面有用處女人十八片，因?yàn)楣趋繑U(kuò)張與峰值出現(xiàn)時間相關(guān)性很強(qiáng)99riav黄片国产免费，是預(yù)測曲線回歸的重要參數(shù)。

Results The prevertebral height recovery platform stage happened in all the three methods of reduction. There is no significant difference between the prevertebral heights in the maximum experimental load; the prevertebral height increased first and stayed stationary later in the hyperextension reduction procedure; in the device reduction process, the prevertebral height stayed stationary at first and dereased later.

結(jié)果 在三種復(fù)位過程中都存在椎前高度恢復(fù)平臺期国产一级特黄在线视频；在試驗(yàn)載荷最大值時椎前高度前后比較在线观看黄色毛片，差異均無顯著性意義（P＞0.05）；過伸復(fù)位中椎前高度是先增加后停滯久青草视频，器械復(fù)位中椎前高度是先停滯后增加caoporen在线精品视频。

The diffracting optical element includes two layers equal in the height of the relief pattern and opposite to each other in the direction in which the height of the relief pattern varies in a period, and another layer differing in the height of the relief pattern from the two layers.

衍射光學(xué)元件包括在凹凸模式的高度上相等并在凹凸模式的高度在一個周期內(nèi)變化的方向上彼此相反的兩層，以及凹凸模式的高度不同于所述兩層的另一層久久伊人青草。

Height and Weight The American Pit Bull Terrier must be both powerful and agile so actual weight and height are less important than the correct proportion of weight to height.

高度和體重美國比特牛頭更必須既強(qiáng)壯又靈活AAAAAAAAA性关系视频，因此體重和身高的恰當(dāng)比例要比實(shí)際的體重和身高重要在线污网站。