心轴

The bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing.

因此轴承是自调心的，不受轴相对于轴承箱的不对中影响。

L Using dual-hydraulic self-centering clamps clamp the workpiece, the two central hole coaxial with high precision.

l 采用双自定心液压夹具夹持工件，两中心孔同轴精度高。

CNC lathe to use more three-jaw self-centering chuck gripping the workpiece; shaft workpieces can also be used to support the workpiece tailstock top.

数控车床多采用三爪自定心卡盘夹持工件；轴类工件还可采用尾座顶尖支持工件。

It was suggested that aging did not only influence diastolic filling period, but also influence STI. 3. With increasing age, whether at rest or during exercice, fractional shortening of minor semiaxis, mean velocity of circumferential fiber shortening, cardiac index and ejection fraction did not change, but immediately post pacing, PEP prolonged and PEP/ LVET increased in elderly group and did not change in young group. It was suggested that STI was sensitivity in detecting systolic function of LV. 4. There was a good correlation between aging and decreased compliance and diastolic function of left ventricle which was manifested by a reduction of early diastolic peak folw velocity, time-velocity integral of early diastole, 1/3 filling fraction (1/3FF)(r=-0.958,-0.875 and -0.937, P＜0.01～0.001) and a significant compansatory increase in peak flow velocity of atrial contraction, time-velocity integral of atrial contraction, the ratio between APFV and EPFV and the ratio of ATVI and Total TVI (r=0.958, 0.956, 0.966 and 0.986, P＜0.001) and the prolongation of Dec T and RFP with increasing age. It was particularly true for the subgroups above the age of 50 years.

静息状态下收缩时间间期与年龄无相关性，负荷后即刻，老年组射血前期延长(P＜0.05)，射血前期与射血期比值加大(P＜0.05)，青年组无变化，提示年龄因素亦影响STI，但由于静息状态下得到代偿，STI变化往往表现不明显。3、静息及负荷状态左室短轴缩短率、平均周径缩短率、心指数及射血分数均不随年龄增长而变化，而负荷后即刻老年组PEF延长，PEP/LVET加大，提示STI是检测左室收缩功能的敏感指标。4、随年龄增长，心房收缩期充盈峰值流速、流速积分、充盈分数及心房收缩期与舒张早期充盈峰值流速之比值显著增高(r＝0.958、0.956、0.986及0.966，P均＜0.001)，舒张早期充盈峰值流速及流速积分、1/3充盈分数(1/3FF)下降(r＝-0.958、-0.875及-0.937，P＜0.01～0.001)。

The biaxial molecules interact via dispersion forces and the molecular centres of mass are located at the sites of a simple cubic lattice.

双轴分子通过色散力作用，使分子质心固定在简单立方晶格的格点上。

Leaf blade obtuse to subcordate at base, abaxially glabrous, secondary veins 3 or 4 pairs; twigs terete; rachis and pedicels glabrous.

叶片钝的到近心形在基部，背面无毛，次脉3或4 对；小枝圆柱状轴和花梗无毛。 21 Gaultheria leucocarpa 白果白珠

We selected 33 segments which show hypokinetic or akinetic at resting echocardiography to undergo identification ofviability.Pulsed-wave Doppler tissue imaging was recorded at mid-point of endocardium of every selected segment, at inner and outer mitral annul us as well.Then we measured the parameters.

应用16节段半定量法分析室壁运动，选取静息状态下低动力或无动力的心肌节段进行存活性的评价，留取受检节段长轴方向心内膜中点及二尖瓣内、外环脉冲组织多普勒频谱图，测量各参数。

Ovary superior, of 2 or 3(–5) carpels, usually 1-loculed or incompletely 2–5-loculed; ovules numerous, anatropous; placentation parietal, axile, or basilar.

子房上位，心皮2者3(-5)，通常1室或不完全2-5室；胚珠多数，倒生；胎座式为周壁胎座，轴胎座或者基底胎座。

Ovary inferior, with as many carpels and locules as sepals, septa sometimes thin or absent at maturity; placentation axile or parietal, ovules 1 to many per locule, in 1 or several rows or clustered, anatropous, bitegmic; style 1; stigma with as many lobes as sepals or clavate to globose.

子房下位，子房室、心皮与萼片同数，在成熟时隔膜有时薄或无；中轴胎座或侧膜胎座，每室胚珠1到多，排成1或几列或丛生，倒生，具双珠被；花柱1；柱头裂片与萼片同数或棍棒状到球状。

Ovary superior, 2-loculed; ovules 2 per locule; placentation axile, appearing nearly basal, apotropous or anatropous, bitegmic, crassinucellar; style simple, connate; stigma discoid or capitate, rarely 4-lobed, not papillate.

子房上位，2室；每个子房室内2胚珠；中轴胎座，近基部着生，下转或者倒生，具双珠被，具厚珠心；花柱单一，合生；柱头盘状或者头状，很少4裂（Tetrastigma，不具乳突。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。