查询词典 least squares

The results show that, for the first with no headwall, when there is no crosswind, it has small front face areas, so the aerodynamic resistance is the least. Since the second and the third have headwall, the front face areas are large, so they have bigger aerodynamic resistance. Under the condition of crosswind, as the third design option has the highest side beam, the area of positive pressure at the upwind is bigger, and the area of negative pressure is smaller when the bigger eddy area appears, so the side forces become larger. The first has the least side forces; the overturning moment of the first is the least.

研究结果表明：在无横风情况下，方案一中没有端墙，迎风面积较小，受到的气动阻力最小，方案二和三中平车有端墙，迎风面积较大，受到的气动阻力也较大；有横风情况下，方案三中平车侧梁较高，车体迎风面正压区较大，而背风侧产生较大的涡流区，在此区域内压力较小，故其横向力较大，方案一中平车侧梁没有加高，受到的横向力最小；方案一中平车倾覆力矩最小，稳定性最好。

An adhesive composition comprises: at least one ethylene/a-olefin interpolymer, at least one tackifier; and optionally at least one additive, such as a plasticizer, wax and antioxidant.

本发明涉及一种粘合剂组合物，其包含：至少一个乙烯/α-烯烃共聚体，至少一个增粘剂；及的任选的至少一个添加剂，例如，增塑剂、蜡，及抗氧化剂。

The invention relates to a method for synchronizing at least one node of a bus system, which is operated with a predeterminable system clock period, whereby a local clock period and a reference clock period are given for the at least one node, and the reference clock period is synchronized with the system clock period. A local clock period, which is synchronized with the system clock period, of the at least one node is produced whereby linking the local clock period with a splitting factor, whereby the splitting factor represents a ratio of the reference clock period to the local clock period. The splitting factor for synchronizing the local clock period with the system clock period is adapted by adding or subtracting a adaptation value.

用于同步至少一个总线用户的方法，所述的总线系统用可预定的系统周期运行，由此为该至少一个用户给定局域时钟脉冲周期和基准时钟脉冲周期并且把局域时钟脉冲周期与系统时钟脉冲周期同步，其中通过把局域时钟脉冲周期与分配系数相关联的方式产生同步到系统时钟脉冲周期的、至少一个用户的局域时钟脉冲周期，其中，分配系数说明基准时钟脉冲周期与局域时钟脉冲周期的比例，其特征在于，通过加或者减一个适配值或者说补偿值，对用于把局域时钟脉冲周期与系统周期同步的分配系数进行匹配。

This article studied differences in postpartum fatigue and birth outcomes between women who pushed immediately and those who delayed pushing during the second stage of labor. Data were collected from primiparous women in their 38th to 42nd gestational week who did not receive epidural analgesia during labor and were free of complications during pregnancy. Using a quasi-experimental design, 72 participants selected by convenient sampling were assigned based on individual participant's preference to either an experimental or control group. For the experimental group, pushing was delayed until the point after full cervical dilation at which the mother felt a strong physical pushing reflex, the fetal head had both descended to at least the +1 level in the pelvis and turned to the occiput anterior position, and uterine contractions were at least 30 mmHg. For the control group, the physician instructed mothers to begin pushing after full cervical dilation at the point when the fetal head was in the occiput anterior position and uterine contractions were at least 30 mmHg.

本研究目的在探讨初产妇女第二产程立即用力与延迟用力对产后疲惫及生产结果的影响，收案对象为怀孕38-42周初产妇女、待产期间未施打硬脊膜外麻醉，且怀孕期间无任何合并症，於待产期间向其解释研究目的及收案方法后予以收案，采类实验设计法，以方便取样并依个案之意愿分派於实验组及控制组，实验组於子宫颈完全扩张后等到强烈想用力的感觉、胎头位到达坐骨棘连线下1公分以下、胎头位置转到枕前位、子宫收缩规律强度至少30mmHg才教导向下用力；控制组於子宫颈完全扩张后即教导向下用力，共收案72位。

The method adopts the following steps: after mixed, phosphorus source, silicon source, aluminum source, an organic template agent, water and a precursor of the SAPO molecular sieve are hydrothermally crystallized for at least 0.1 hour at the temperature ranging from 110 to 260 DEG C to obtain the SAPO molecular sieve; wherein, the preparation method for the precursor of the SAPO molecular sieve has the following steps:, the molar ratio is 0.03 to 0.6 R:(Si0.01 to 0.98: Al 0.01 to 0.6: P0.01 to 0.6): 2 to 500 H2O; wherein, R stands for mixture solution of raw materials which is blended by the phosphorus source, the silicon source, the aluminum source, the an organic template agent and water of the template agent;, the mixture solution of raw materials prepared in step reacts at the temperature which is at least 50 DEG C lower than the crystallization temperature for at least 0.1 hour.

本发明通过采用包括以下步骤：将磷源、硅源、铝源、有机模板剂、水和SAPO分子筛前驱体混合后在110～260℃的温度下水热晶化至少0.1小时获得SAPO分子筛；其中SAPO分子筛的前驱体的制备包括以下步骤：将摩尔配比为0.03～0.6R∶(Si0.01～0.98∶Al0.01～0.6∶P0.01～0.6)∶2～500H 2 O，式中R代表模板剂的磷源、硅源、铝源、有机模板剂和水混合成原料混合液；将步骤制备的原料混合液在低于晶化温度至少50℃的温度下反应至少0.1小时的技术方案较好地解决了该问题，可应用于含氧化合物制烯烃催化剂的制备过程。

The characteristic of this installation compared with toe technologys now availatble is as follows; it needs no driving power, the structure of which is very simple; the water-supply height is not restricted for any factors within the most scops. Using H-O internal storing high-pressure gas pope as the pessure device, we can at least make the water-supply height to be 403.2 metres. If we use 16MPa mine filter press, transfering water freeboard can be very, and the height of weater-supply will be at least 1,644 meters, If the strenth of alloyed steel is desighed to be at least 50kg per square millimeters, the water-supply height will reach 50,565.6 metres.

该装置与现有技术相比其特点是：结构简单，不用动力，且上水高度在较大范围内不受任何条件的限制，采用H－0型内贮式高压气管作加压工具，从而使上水高度最少为403.2米，如果使用16MPa矿压机便可实现超高输水，其上水高度最少为1644米，按照合金钢强度最低50千克力／平方毫米设计，该装置的上水高度最少可达到50565.6米。

A forming die set, comprising: an extendable punch having a first impact surface comprising a plurality of piercing points; a die body containing an aperture adapted to receive said punch; a fixed opposing post having a second impact surface positioned within said aperture, said opposing post recessed below a surface of said die body; at least one forming bushing slideably engaging said opposing post and positioned between said opposing post and said die body; and at least one forming bushing actuator supporting said at least one forming bushing.

形成一钢模组，包含：一个可扩充的打洞器让一种第一种冲击升至水面包含一个刺骨点的多数；一个包含一个孔的一钢模身体适应接受说打洞器；有一个第二个冲击表面的固定反对职位放置在说的孔里面，说反对被在一个说的一钢模身体的表面下面作凹处的职位；至少一个形成桥衬可滑动动人说反对职位而且在说反对职位之间放置而且说一钢模身体而且至少一个支援的形成桥衬主动器至少说一个形成桥衬。

A composite rigid shell, with an aerodynamic profile, elongated longitudinally along the span of the blade, one longitudinal end of which is turnable towards a hub of the rotor and includes a blade root, said shell including at least one layer of reinforcing fibres agglomerated by a matrix comprising a synthetic rigidifying resin and laminated upper-surface and lower-surface skins extending from a leading edge to a trailing edge of the blade, each of said laminated skins comprising, from an inside towards an outside of the shell, a film of polyetherimide resin, at least one layer of plies of long and unidirectional fibres oriented substantially along a longitudinal axis of the blade, and at least one layer of fibre fabric, in which the directions of weft and warp yarns are oriented substantially at 45.degree.

复合刚性外壳，与气动的个人资料，拉长纵向沿跨度刀片，一纵年底，这是对回转中心的转子和包括叶根表示，蚬壳，其中至少1层加固纤维烧结由一个矩阵组成的一个综合rigidifying树脂和复合材料层合上表面和低表面皮肤延长，从领先到尾缘的刀片，每个说，叠层皮组成，从内对外界的壳，一个电影聚醚酰亚胺树脂，至少有一个层的层长和单向纤维导向的大幅沿长轴的叶片，并至少有一个层的纤维织物，在该方向的纬纱和经纱是面向大幅在45.degree 。

A washer has a body having an axis and provided with a first bearing face surface located at one axial side and adapted to cooperate with a nut, a second bearing face surface located at an opposite axial side and adapted to cooperate with an object, at least one third turning resistant surface adapted to cooperate with a thread of the bolt, the body having at least one resistive point arranged so that when the nut is turned and turns the bolt the body of the washer stops the bolt from turning and thereby the nut creates a pull on the bolt which elongates the bolt in an axial direction and applies to the body of the washer an axial force which overcomes the at least one resistive point so that a portion of the body of the washer is allowed to be pulled axially when the bolt elongates.

一种放在螺帽与物体之间的垫圈，螺帽与螺栓螺纹连接，螺栓插入在包括两个装配的部件的物体内，垫圈具有主体，和设有第一支承面表面，位于一个轴向侧面和与螺帽配合，第二支承面表面，位于相对的轴向侧面和与物体配合，以及至少一个第三转动阻力表面，与螺栓的螺纹配合，从而使螺帽以给定的扭矩在一个方向转动同时垫圈的主体沿相对方向接收给定的力时，仅有螺帽转动，以紧固或松开螺栓，而垫圈的主体和螺栓保持静止。

An insulated conductor, including each insulated conductor of a cord, that is rated for 90EC, 105EC, or 125EC shall be considered as rated for 150EC if each conductor is individually provided with supplemental insulation consisting of snugly fitting woven glass fiber sleeving having at least a 0.25 mm (0.010 in) wallthickness or at least two layers of glass fiber tape that provide a total thickness of at least 0.25 mm (0.010in).

如果每个导体都单独有补充绝缘措施，这是由编织缜密的玻纤布作成的一个套子，壁厚度至少0.25 mm (0.010 in)，或者是至少是由两层玻纤带包裹而成，总的厚度至少为0.25 mm (0.010in)，那么被绝缘的导体，包括电线上的每一个绝缘的导体，其额定耐温为90EC，105EC或125EC将被视作额定耐温为150EC。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。