查询词典 ring-a-ding

The novel long carbon chain fused ring semi-aromatic nylon PA12N takes the long carbon chain aliphatic diamine 1, 12-twelve carbon diamine and fused ring aromatic serials dibasic acid 2,6-naphthalenedicarboxylic acid as raw materials and is made by the processes of salifying, prepolymerizing and polymerizing after solid phase.

它以长碳链的脂肪族二元胺1，12-十二碳二元胺和稠环芳香族二元酸2，6-萘二甲酸为原料，经过成盐、预聚合、固相后聚合制得。

The commutative theorem characterized by an associative ring, presented in document 1 noted by Guo Huaguang is extended to the formation of the left near ring with partition law.

把郭华光在文献［1］中关于结合环的交换性定理推广到分配生成左拟环上。

Meltzerr right hand at the top of the frame.Second,he uses aBookwalter pediatric ring retractor system to keep the vaginal cavity open as the dissection progresses.Two retractors attached to the bottom of the ring maintain downward and lateral pressure wit你好n the cavity.

其次，Dr.Meltzer用了Bookwalter小儿科圆环牵引器系统来保持阴道张开，以利整个切割手术进行，环底附着的两个牵引器则维持了阴道向下和侧面的压力。

We believe that the ring-in-ring structure can be used as optical buffers, signal retarders, optical delay line for optical communication.

这种结构在光通信领域有潜在的应用，如光缓存，光信号延迟器，光学时延线等。

Benzyl isopropyl ether also forms CCT complex with oxygen on the benzene ring like phenyl isopropyl ether, but it is easy to oxidize since charge transfer and 〓 transfer may occur at the methylene group adjacent to the benzene ring, which result in the oxidation of the methylene group.(4) The 〓-CCT complex and the initial dark oxidation mechanism of poly were studied.

虽然苄基异丙醚也以苯环与O〓形成CCT复合物，但它却容易发生暗氧化，这是由于与苯基相连的是亚甲基，此时电荷转移发生在苯环与亚甲基之间，引起亚甲基的氧化，而不是异丙基的氧化。

Such auto accessories as piston ring, car bridge, steel ring, piston, camshaft and spring are of high quality nation wide.

为汽车配套的活塞环、车桥、钢圈、活塞、凸轮轴、弹力弹簧等产品在全国同行中占有一定的地位。

Using the software of I-DEAS, the dynamic finite element model of entire reducer was established including gear, ring plate, shaft, bearing and gearbox housing and used to analyze the vibration modal, the time-domain and frequency domain dynamic response and one-third octave velocity grade structural borne noise of double ring gear reducer under dynamic excitation.

利用I-DEAS软件，建立了包括齿轮、环板、传动轴、轴承和箱体的整个减速器系统的动力有限元分析模型，计算了减速器的振动模态、动态激励下的时域和频域响应，以及速度级1/3倍频程结构噪声。

Keywords: ring signature;secret sharing;threshold ring signature;bilinear parings;key escrow

该方案能保证不诚实的PKG无法伪造环签名，有效避免了密钥托管问题。

The company has more than 20 years of history, have been engaged in cotton, wool spinning, chemical fiber, Sifang ring and ring on the production and related accessories.

本公司已有20多年的历史，一直从事棉纺、毛纺、化纤、丝纺钢领及钢领座和相关配件生产。

Designing space mechanism run into question at first is that correct to confirm space degree of freedom of organization, but calculating many degrees of freedom, seal more ring, harmony wave gear wheel organization, space degree of freedom of organization of mixing with traditional degree of freedom must be very tedious; Calculating general form seal ring low packs of space degree of freedom of organization can be limited greatly too.

设计空间机构时，首先遇到的问题是要正确确定空间机构的自由度，然而，用传统空间机构自由度公式去计算多自由度、多封闭环、谐波齿轮机构、混合型空间机构的自由度时，必须进行变换；计算一般单封闭环低副空间机构自由度时，也会受到很大限制。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。