使固定

Then considering earth rotation and 6-DOF movement,the expression of absolute velocity and absolute acceleration for vehicle centroid are deduced by using transform of vector derivative.

与陆基固定垂直发射条件不同的是，潜射弹道式飞行器是在运动着的潜艇这样的动基座上进行发射的，为了保持发射时潜艇的可操纵性以及发射后使发射艇尽快离开发射位置，发射艇要有一定的速度。

Element analysis shows that there are an abundant number of-NH〓 groups in the interlamellar region of the uncalcined APS-ZrP support, which may facilitate the intercalation and dispersion of the nickel species.

另外此前驱体在水中容易溶涨使层间距增大至3.5nm，比传统方法中载体的层间距由于事先烧过而固定为1.8nm更有利于金属离子的进入层间。

Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。

As a lexical item, as a construction, one of the members of an antonymous pair can elicit the other one naturally and frequently.

汉语反义词对作为大脑中的一个固定词汇项，作为一个构式，其成员之一的出现总是经常使另一成员出现。

The nylon was activated with organic functional groups,and after that reacted with high-molecular-weight polyethyleniminein the organic soleent. PEI was grafted covalently on the surface of nylon. The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

摘 要：尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

He or she is expected to be autonomous practician who can make decision on rational thinking and assume the more complicated responsibility than delivering the prescribed curriculum content.

作者认为，当代社会变化迅速的特征和民主化的要求使学校教育的目的发生根本性转变—由培养固定职能的承担者转向使每个人的才能与个性得到充分的发展。

Changed the two screws on the contact plate of the Halo-Vest to one screw,so that the Halo-Vest can fit extension-flexion movement and adapt the reduction of cervical spinal dislocation.Simultaneously,in order not to reduce the fixed funtion of the contact plate,which was designed in fan-shape.

将传统的Halo-Vest架头环与架子接板的双螺丝改为单螺丝，使不能伸屈的头环变为能够伸屈；将头环与接板的咬合面设计成扇形并且有放射状条纹，使头环能牢固地固定在任何一个伸屈角度上。

The effect of adhensives on negative electrode gas evolution and on discharge performance of mercury-free alkaline Zn/MnO2 battery were experimented by the method of collecting evolution gas and by the battery discharge in fixed resistance.

前言 碱性锌锰电池中负极粘合剂的主要作用为：（1）作为锌粉分散剂，使锌膏在电池贮存与放电过程中不发生固液分离；（2）固定负极区的碱液，使碱液不被或少被正极或隔膜吸收。

The Yangjiang "" Diamond brand stainless steel kitchen knives, with fixed blade capable of handling paper box packaging, sales to convenient box used photography features displays of the lens; base map is a vegetable and meat with a chopper, origin, history, quality photographs and descriptions, so that its long history, high quality real seconel, professorge, subject to domestic and foreign customers.

广东阳江的&钻石&牌不锈钢菜刀，用具有能固定刀体的纸盒包装，使搬运、销售方便；盒面上用摄影特写显示交锋的镜头；底图是蔬菜与肉类，附以菜刀产地、历史、质量等的照片与说明，使其悠久的历史、上乘的质量得到真实的直观展现，受到国内外客户的欢迎。

Of its light weight, small size, easy to install in the HQ44/45X slightly resistance ball-Like check valve flange between the valve-house by two semi-circular springs and board composition, with the pin fixed to the valve on the valve plate to close the spring deformation, fluid pressure exerted by the spring to open the deformation rapidly, so to protect pipelines from water hammer damage.

其重量轻，体积小，容易安装在法兰之间，阀门内部由两个半圆弹簧和板面组成，用销子固定在阀体上弹簧形变使阀板关闭，流体压力又使其开启弹簧的形变很快，这样能保护管道免受水锤破坏。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了