RESULTS: The two novel D ring synthons are of high optical purity.
结果：所合成的两个手性d环合成子光学纯度高。
D ring is not a necessary backing part which has biological activity in these compounds.
环不是该类化合物具有生物活性的必需骨架部分。
Lasing Eye, Foundation, Sockets, Plate, Guide Cone, Lashing Bar, Twistlock, BaseTwistlock, Single Stacker, Double Stacker, Bridge Fitting, D Ring.
眼板，底座，底板，吊座，导锥，拉杆，底锁，扭锁，单锥，双锥，桥码，地令。
If the pilot had to pull the "d" ring (ejection handle) in an emergency, the cables would snap the wearer's feet back under the seat to ensure a smooth and safe ejection from the aircraft.
当发生紧急情况，飞行员需要弹射时，缆绳会将马刺佩戴者的足部从座椅下方拉出来，以确保弹射安全。
D isometric view for total immersion into the ring.
三维等距的看法总沉浸到环。
The resulted D, L-lactide and glycolide were found to have ring structure by fourier transform infrared spectrometry and proton nuclear magnetic resonance(1H NMR) spectrometry.
通过傅立叶红外光谱和氢核磁谱（1H NMR）测试表明所合成的丙交酯和乙交酯具有环状结构。
They hold the helmet by the "D" ring and can be adjusted to fit any style helmet with a "D" ring.
通过D形环支撑头盔，而且可进行调整以适合任何样式的头盔。
It holds the helmet by the "d" ring and can be adjusted to fit any style helmet with a "d" ring.
通过D形环支撑头盔，而且可进行调整以适合任何样式的头盔。
This paper is concerned with three TTL D flip-flops and six Decoders which are buith by Ring counter design.
本文是关于采用三个TTLD触发器和六个译码器来组成扭形计数器的设计。
I have mixed thoughts on the D-ring which Maxpedition has been using for a while.
我一直对马盖先使用的这个D环设计有更多的想法。
Record of Drought and Flood Series by Tree-Ring Data in the Middle Section of Qilian Mountain Since 904 A. D.
祁连山中部公元904年以来树木年轮记录的旱涝变化。
The torus curve triangular BEM is put forward to calculate electric field intensity of ring electrodes in 3-d electrostatic fields.
针对高压电力设备中常见的圆环电极表面电场强度的计算问题，提出了圆环面曲边三角形边界元方法。
A non-clock delay-ring A/D converter is presented, which is based on standard cell library and not sensitive to process variation.
提出了一种无需外部时钟、可以部分抵消工艺偏差、基于标准单元的延迟环A/D变换器。
You "d better ring me first just in case."
以防万一，来之前最好先打个电话。
The Ring-opening polymerization(ROP) of D-lactide(D-LA) catalyzed by bifunctional thiourea catalyst has been studied by performing density functional theory calculations at the B3LYP/6-31G(d) level.
用密度泛函理论在B3LYP/6-31G（d）水平上研究了双官能团硫脲催化丙交酯开环聚合反应的微观机理。
Moreover, parent compound 2.11 was designed by changing hybridization of carbon which attached with the pyranone D-ring at 7-position.
再次，通过改变与吡喃酮环相连的亚甲基碳原子的电子云杂化状态，设计了化合物类型2.11。
Taking Shanghai Middle Ring Road project as example, the principle and effect of D-125 as a waterproof agent are described.
并以上海中环线工程为例，介绍了D-125有机硅浸渍防水剂的防水原理和防水效果。
This article introduces the ultimate principle and calculation method technique of 1-d smoke ring inversion technique for grounded source transient electromagnetic method and the applied examples.
文中给出电性源瞬变电磁测深一维“烟圈”反演解释方法的基本原理、计算方法和应用实例。
We "d best get to that hotel before they ring down the curtain on the conference."
我们最好能在会议结束之前赶到那家酒店。
由于在一边关闭的领带。
We've included a steel D-ring for clipping gear to the exterior of the vest as well as a key clip to keep your keys safe.
我们提供了一个钢铁的D -响裁剪设备到背心外观以及钥匙扣，让您的密钥安全。
We've included a steel D-ring for clipping gear to the exterior of the vest as well as a key clip to keep your keys safe.
我们提供了一个钢铁的D -响裁剪设备到背心外观以及钥匙扣，让您的密钥安全。
应用推荐