查询词典 short-term

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

氯代有机物一般都是典型的持久性环境污染物，其中部分氯代有机物还是环境激素类物质，例如，滴滴涕、林丹和六氯苯等，这些氯代有机物在环境中的迁移转化一直是国际环境化学领域的热点、重点课题。氯代有机物进入环境水体后，成为沉积物吸附态有机污染物的重要成分，天然水沉积物经常处于缺氧状态。因此，研究氯代有机物在天然水体沉积物中的缺氧脱氯行为是非常必要的。

In the current study, anoxic dechlorinations of p, p'-DDT,γ-HCH, HCB in the Liao River sediment were studied under the following conditions: without any additional short chain carbon substrates or vitamin B〓; with the addition of short chain carbon sources (including sodium lactate, sodium propionate or sodium acetate); with the addition of vitamin B〓; with the addition of both short chain carbon substrates and vitamin B〓, with the addition of sodium dodecyl sulfate , a kind of surfactant; the coexistence of the three chlorinated compounds.

本文分别采用不外加碳源和维生素B〓外加碳源（包括乳酸钠、丙酸钠或乙酸钠）、外加维生素B〓以及同时外加碳源和维生素B〓的方法，考察了p，p'-DDT、γ-HCH和HCB三种氯代有机污染物单独或混合存在下，在辽河沉积物中缺氧脱氯降解的情况，主要得到以下结论

The method is just like the QuikChange site-directed mutagenesis method except for its special primer. This pair of primers is composed of a long primer and a short primer which is central overlapped.Both of the Tm of 5\'sequence in long primer and Tm of 3\'sequence in short primer are above 66℃.The Tm of short primer is almost half of that of long primer.It is convenient to perform insertion or substitution mutation of DNA fragments larger than 20bp,In addition,it is highly applicable in research about the deletion mutation of DNA fragments larger than 2000bp.

我们实验室一直在寻找一种简单高效的可以用于基因的删除、插入及替代突变的方法，通过大量研究和实验发现，可以使用一种基于反向PCR原理，使用全新的引物设计的突变方法——&COP&突变法，该方法采用与QuikChange点突变法相同的操作步骤，其策略是设计一对中心重合的引物，长引物的5\'端序列和3\'端序列的Tm值均不低于66℃，短引物Tm值约为长引物一半，且与长引物中心重合互补。

DC power transmission simulationmodel is set up in this paper with the Matlab software, and various faults such as single-phasegrounding short circuit, phase to phase short circuit, three-phase circuit grounding shortcircuit and inverter bridge short circuit are simulated in this model.

用MATLAB软件建立了电力系统直流输电仿真模型，模拟了单相接地短路故障、相间短路故障、换流器桥臂以及单桥故障，经过近百次仿真运行，得出了各种故障下的特性曲线，准确描述了直流输电系统在发生大扰动后的暂态过程，并从理论上进行了科学分析，得出了各种故障对换相失败的影响。

All the production items formed through multiple additional investments after initial investment of an enterprise with foreign ivestment, which have not enjoyed any preferential treatment of fixed-term abatement or exemption of taxes (except for the additional investments that have not formed production items) may be merged into one item for calculating the its new incremental registered capital. If this new incremental registered capital meets with the requirements specified in Article 1 of CaiShuiZi [2002] No.56, it may enjoy preferential treatment of fixed-term abatement or exemption of taxes for the independent item after the merge.

外商投资企业在前期投资以后，进行多次追加投资所形成的生产经营项目（不包括未形成新的生产经营项目的追加投资），凡没有与前期投资项目一并享受过定期减免税优惠待遇的，可以将该多次追加投资所形成的生产经营项目合并为一个项目计算其新增注册资本，该多次追加投资所形成的合并项目的新增注册资本符合财税字［2002］56号文第一条规定条件的，可就该合并后的项目单独计算享受定期减免税优惠待遇。

When presentation of a sight draft or an accepted term draft for payment or of a term draft for acceptance is dishonored, the bill must be protested.

当即期汇票或远期承兑汇票提示付款或远期汇票提示承兑遭到拒绝时，必须把汇票作成拒付证书。

Long-term procurement of paraffin, a variety of the nature of plant wax, cotton core and a variety of Candle Candle Process with accessories, various ancillary glass products, the following long-term demand for 10MM Adiantum, 1.5MM following cold-rolled plates (including 2 plates), welcome to contact the supplier calls.

长期采购石蜡、各种性质的植物蜡、蜡烛棉芯及各种蜡烛工艺用配件、各种配套玻璃制品，长期需求10MM以下铁线、1.5MM以下冷轧板，欢迎各供应商来电联系。

The optimal control law consists of an accurate linear feedback term and a nonlinear delay compensation term that is the limit of an adjoint vector sequence.

最优控制律由精确的线性反馈项和非线性时滞补偿序列的极限项组成。

The optimal control law obtained consists of linear analytic functions and a compensation term which is a series sum of the adjoint vectors. The analytic functions can be found by solving a Riccati matrix difference equation and a matrix difference equation. The compensation term can be obtained by a recursion formula that solves adjoint vector equations.

得到的最优输出跟踪控制律由状态向量的线性解析函数和伴随向量级数形式的补偿项组成，其解析函数由一次性求解Riccati矩阵差分方程和矩阵差分方程得到，补偿项由求解伴随向量差分方程的递推公式得到。

The importance of learning in that time when behavior's flexible and there's also a lot to learn in chimpanzee society, the long-term affectional supportive bonds, that developed throughout this long-term childhood with mother, with brothers and sisters, and which can last through a life time.

这段时间内的学习是很重要的，要想生存在黑猩猩的群体中，还有很多东西要去学。这种在与母亲及兄弟姐妹长期相处的过程中学会的关爱和支持能够贯穿它们的一生。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。