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to allow
相关语句
  允许
     New international rules to allow storage of CO_2 under the seabed
     新国际规则允许海床下储存CO_2
短句来源
     The TL16C554 can be placed in an alternate FIFO mode, which activates the internal FIFO to allow 16 bytes to be stored in both receive and transmit modes.
     TL16C554能够被放置在一个交替的FIFO模式。 该模式能激活内部的FIFO从而允许16位的字节在接收和传输模式中被存储。
短句来源
     1. research backgroundOn December 11, 2001, our country joined WTO (WTO) formally, and our government seriously promised to open the financial market in an all-round way within 5 years in the future and to allow the bank of the foreign capitals to run the business of RMB in China.
     1.研究背景2001年12月11日,我国正式加入世界贸易组织(WTO),我国政府郑重承诺在未来的5年内全面开放金融市场,允许外资银行在华开办人民币业务。
短句来源
     There are two crucial points -- one is to allow competition, another is to establish a healthy and orderly environment of competition.
     关键是 ,一要允许竞争 ; 二要建设健康有序的竞争环境。
短句来源
     In the method of multi-table and multi-record for main memory management, the thesis introduces the means to allow users to define the space of the working area and tables in main memory.
     提出了以表工作区为主的多表多记录的存贮管理方法。 该方法允许用户自行定义表工作区大小和内存中表的大小,即用户可以决定,将所有的表放入内存、一部分表进入内存、还是表的一部分进入内存。
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  “to allow”译为未确定词的双语例句
     Methods: phCMV1-6His-hCGβ-C3d3 expression vectors,based on the phCMV1,were constructed to allow fusion of hCGβ and C3d3 and a 6His-tag at the N-terminal end.
     方法 利用高效真核表达载体 phCMV1,构建带有 6个组氨酸纯化标签的融合蛋白表达质粒phCMV1 6His hCGβ C3d3;
短句来源
     Methods PC12 cells were seeded in 96-well plates (2×10 3/mL) in culture medium supplemented with 10 nmol/L mouse 7S-NGF before assay to allow neural differentiation.
     方法PC12细胞株 (2× 10 3 /mL)在含10nmol/L 7S NGF的培养基中孵育 6d后 ,分化为神经性PC12细胞株。
短句来源
     In groupⅢthe PCIA pump was programmed to allow a 5 ml bolus dose with 8 min lockout interval and background infusion of 2.5 ml/h.
     S组背景剂量2.5 ml/h、PCIA剂量5 ml/次,锁定时间8 min。
短句来源
     In core flood experiments,after injecting 0.4PV nutrient slug of 10-20mL/L corn syrups concentration into cores and 15-20 days of subsequent incubation to allow for in-situ microbial maximum growth,the recovery increases by 8% OOIP.
     向岩心注入0.4PV的营养物,玉米浆浓度10~20mL/L,并关闭培养10~20d后,采收率提高约8%。
短句来源
     Know the Person to Allow the Perfect Leadership Well——The apocalypse of 诸葛亮 cutting 马谡 with a tear to the modern leading art
     知人善任 完善领导选拔制度——诸葛亮挥泪斩马谡对现代领导艺术的启示
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  相似匹配句对
     Allow to make the system strictly;
     严格准入制制度;
短句来源
     Sign Patterns That Allow Orthogonal Matrix
     蕴含正交矩阵的符号模式
短句来源
     What Leaders Allow Themselves to Know
     领导者应该允许自己知道些什么?
短句来源
     Budgeting should be safe and allow leeway.
     预算编制要稳妥可靠、留有余地。
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  to allow
In vitro transposition was carried out using the transposon and AcMNPV genomic DNA to allow the random insertion of the transposon into the virus genome.
      
An attempt is made to allow for a sample polydispersity while measuring particle size distribution by the dynamic light scattering.
      
In solving various gasdynamic problems it is necessary in a number of cases to allow for real physicochemical processes, for example, chemical reactions, radiation, and the interaction between the medium and an electromagnetic field.
      
Diffuse reflectance spectroscopy in the UV, visible, and near-IR regions is found to allow the detection and identification of lanthanide oxides, fluorides, sulfides, and sulfofluorides without decomposing and dissolving samples.
      
Chromatin is designed to allow both tight DNA packaging and proper functioning and regulation of enzymes such as DNA and RNA polymerases.
      
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In the Construction of large concrete dams, a considerable amount of heat is generated when concrete sets. This heat induces serious thermal stress in the concrete blocks. In the usual engineering practice, the period between successive pouring of concrete is prolonged to allow the transference of heat into the atmosphere. For large dams, this is in conflict with the rapidity, of construction. In order to resolve this difficulty effectively, we have to find means to calculate the thermal stress.The calculation...

In the Construction of large concrete dams, a considerable amount of heat is generated when concrete sets. This heat induces serious thermal stress in the concrete blocks. In the usual engineering practice, the period between successive pouring of concrete is prolonged to allow the transference of heat into the atmosphere. For large dams, this is in conflict with the rapidity, of construction. In order to resolve this difficulty effectively, we have to find means to calculate the thermal stress.The calculation of thermal stress involves calculating the field of temperature distribution, field of elastic stress and creep stress. Being considered as a plane problem, the temperature T(x,y,t) satisfies the following equations (refer to fig. denotes derivatives along the outward normal.a, λ, α are constants.θ(t)is the temperature rise of concrete under adiabetic condition. The stress induced by the fields of temperature distribution and gravity has a stress function Ψp(x,y,t) satisfying the following equation:Δ2Ψ = Eldl/1v2ΔT = 0 in region Gl (1=0,1) The boundary conditions are :along CBAA'B'C' normal stress and shearing stress being zero.along CDD'C' displacement being zero.on surface L0, normal stress σy, shearing stress τxy and displacements u,v satisfy continuity conditionThis paper gives a preliminary treatment to the calculation of the two problems stated above. Several theoretical questions involved in the calculation will be further investigated in the near future.

在混凝土大坝的浇筑过程中,混疑土硬化时所放出的大量热量,会在浇筑块内引起严重的温度应力。为了降低坝内的温度应力,一般工程中采取了降低施工速度的办法,使坝内热量有机会向大气发散,但在大坝工程中,它却与施工速度产生了巨大矛盾,要有效地解决这一矛盾必须首先解决温度应力的计算问题。 温度应力的计算包括了温度(?)、时弹性应力(?)及徐变应力的计算。作为平面问题处理,温度T(x,y,t)满足 其中;表外法向微商α、λ、α皆为常数,θ(t)为混凝土在绝热状态下的上升温度。 由温度应力场和重力场的作用所产生的应力,其应力函数ψ(x,y,t)满足 Δ~2ψ+E_lα_l/(1-v_l~2)ΔT=0 在G_l内(l=0,1)边界条件为: 沿CBAA′B′C′,正应力及剪应力为零; 沿CDD′C′,变位为零: 在接触面L_o上,正应力σ_y,剪应力τ_(xy),位移u、v满足连续条件。 本文仅就以上二问题的计算作了初步研究,计算中所牵涉到的一些理论问题,尚待今后进一步研究。

The wearing angles of the travellers while running at spindle speeds between 13000-15000 r. p. m. and the depth and length of wear of rings and travellers were measured. Various type of rings and travellers were used in these tests, including anti-wedge rings and travellers made in Shanghai. The results show that the wearing angles of travellers are 14°30', 22.25' to the coordinate plane XOY, YOZ respectively. From a simple analysis of the moments acting on the traveller, the cause. of wedging of traveller is...

The wearing angles of the travellers while running at spindle speeds between 13000-15000 r. p. m. and the depth and length of wear of rings and travellers were measured. Various type of rings and travellers were used in these tests, including anti-wedge rings and travellers made in Shanghai. The results show that the wearing angles of travellers are 14°30', 22.25' to the coordinate plane XOY, YOZ respectively. From a simple analysis of the moments acting on the traveller, the cause. of wedging of traveller is discussed, the most serious one being probably the inclined angle A within XY plane. Experiments showed that the working life of travellers are widely different on different rings. Some travellers worked as long as 449 hours, while others had been changed 19 times within the same period. Measurements on those rings and travellers showed that the longer the working life, the greater the ratio of T/t (T-the distance between horns of traveller, and t-the width of the ring web.) and the longer the wearing length. Therefore it is considered that the geometric shape of ring and traveller should suit each other. As an example a ring flange is redesigned under certain simplifications. The author concluded that travellers could run at higher speeds without abnormal wear, burning or wedge, under following conditions: 1. The contact surface between ring and traveller should be larger than those used under ordinary speeds. 2. The center of gravity of the traveller should be low. 3. The contact position on the ring flange should be higher. 4. The space between top surface of the ring and traveller should be large enough to allow yarn to pass through. 5. It is better to use a narrower width of flange. 6. The width of ring web should be narrow. The distance between the horns ends of traveller should be kept at a proper ratio to the flange width of the ring. 7. The sharp angle of the flange curve should be avoided.

通过作用在钢絲圈上各力矩的分析,得出鋼絲圈在运动中是要产生偏斜的。这种偏斜与鋼絲圈重心位置与其在鋼令上接触点的高度有关。由于这种偏斜的产生,且达到使鋼絲的外脚碰及钢令外側壁时,即引起了楔住。認为在子午面中的倾斜是引起楔住的最大原因。除了楔住是运轉上的麻烦外,另一点是钢絲圈在高速下的过快磨損。了对这二点作了討論,提出了在設計鋼领与鋼絲圈的弧形时以及它們相互配合上所应遵循的几点条件。最后,簡單地举例說明了钢令弧形的设計。

Modulation of air stream is an efficient method of sound production. Man's speech organs, sirens, electro-pneumatic loudspeakers as well as common whistles are all based on this principle. The features of air stream sound sources are their high efficiency and possibility of high power outputs, which afford them practical value. The sound production by modulating air streams were discussed by previous authors and theories-given, but some were oversimplified and others too involved to allow practical computations....

Modulation of air stream is an efficient method of sound production. Man's speech organs, sirens, electro-pneumatic loudspeakers as well as common whistles are all based on this principle. The features of air stream sound sources are their high efficiency and possibility of high power outputs, which afford them practical value. The sound production by modulating air streams were discussed by previous authors and theories-given, but some were oversimplified and others too involved to allow practical computations. In this paper, air flow vs pressure characteristics of air stream sources are derived from the basic theory of gasdynamics and graphical method is presented for the estimation of sound radiation under given conditions of plenum pressure and nozzle-to-horn throat area ratio. It is established that although the air flow characteristics as well as the radiation relations are nonlinear, the radiated sound power is determined mainly by the radiation of the fundamental, and approximations give rise to simple expressions for the radiated sound power, the air stream yield and efficiency, with an error less than 1 dB from exact results. Charts are given to facilitate design and question of optimum condition is discussed.

利用气流调制以产生声音是一个比较有效的方法。人的发声器官、旋笛、电动气流扬声器以及一般哨子等都是根据这个原理。气流声源的特点是效率高,功率可以很大,有实用价值。关于气流声源的发声原理,过去已有一些讨论,但有的是过分简化,有的比较细致,但又过于繁复,不便计算。本文从气体动力学的基本原理出发,求得气流声源的气流-压力特性,并用图解法求得在给定气室压力和气流喷口面积比的条件下声辐射特性的方法,考虑到气流声源的气流特性和辐射关系都是非线性的,但是辐射声功率主要由基频决定,从而用近似理论求得了声功率、气流产额和气流效率的简单表达式,和严格理论的结果相比,误差不到1分贝。文中把结果画成图表以便计算,并讨论了最佳设计的问题。

 
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