DHC

Effects of laser irradiation time and concentration of 7-DHC on photochemistry of provitamin D_3

激光辐照时间及7-DHC浓度对维生素D3的光化学影响

District heating and cooling ( DHC ) system is a part of energy system in a modern city.

集中 供冷供热 系统是现代化城市能源系统的一部分.

In fact, DHC has adopted a called communication marketing a unique sales model.

其实, DHC采取的是一种叫做“通信销售”的独特销售模式.

High temperature active site was unfavourable to the hydrogenolysis, its hydrogenolysis behavior showed little effect on DHC.

高温活性中心也有一定的氢解活性，但对脱氢环化反应的抑制作用较小。

A semi-quantitative LC-ESI-MS/ MS method was developed for the pharmacokinetic study of the isomer of DHC when given in the EFY afer oral administration in rat at a dose of 483mg/ kg.

建立了研究大鼠口服延胡索有效部位后DHC同分异构体药物动力学的LC-ESI-MS/MS半定量分析方法，给药剂量为483mg/kg。

No major toxic effects were observed after the applications of 10 %, 20 % and 30 % DHC.

给予10%, 20%,30%多塞平乳膏和基质后,未见该药对家兔有明显毒性作用.

However, on day 15, DHC in group HC was lower significantly than that in control ( P < 0.05 ).

但至第15天时, 高浓度组的DHC下降,显著低于对照组 ( P<0.05 ).

Application of DHC Technology Using CGS to City Districts ( Part )

采用热电联产方式的DHC在城市小区中的应用 ( 下 )

The e-plane--a 62-year-old, six-passenger DHC-2 de Havilland Beaver seaplane retrofitted with an electric motor--was piloted by Greg McDougall, founder and chief executive of Harbour Air.

电动飞机由一架有62年历史的六座DHC-2德哈维兰海狸水上飞机改造而成，由海港航空的创始人和总裁格雷格·麦克杜兰（Greg McDougall）驾驶。

DHC software companies and Dalian Matsushita Communication Software Engineering Company which can be better?

大连华信软件公司和大连松下通信软件工程公司哪个能好一点?

Many techniques concerning energy conservation can be applied to DHC system, and initial cost and maintenance cost can also be reduced.

它可以充分利用各种空调冷热源的节能技术，能降低初投资和维护管理成本。

This discussion extends that review to a description of dual heads coincidence ( DHC ).

双探头符合线路 ( DHC ) 显像技术的不断成熟和广泛应用,使核医学显像技术在诊断肿瘤方面有了新的发展.

Methods: 84 cases of malignant tumor patients in chest were irradiated, CT scan and 18F-FDG/ DHC were accomplished before radiation. Analyzed the imaging by radiodiagnosis physician or nuclear medicine physician respectively, and radiotherapeutic physician established the radiation plan.

方法：搜集经病理证实的胸部恶性肿瘤并行放射治疗患者84例，在放疗前行CT和18F-FDG/DHC检查，由放射诊断医师、核医学医师分别分析两种影像诊断，放疗医师制定照射计划。

DHC is a professional HR management consulting company ( headhunting company ).

本公司是一家专业的猎头公司.

Yunsi, just a failure of the DHC skin care, out of the question of SK ~?

晕死, 刚刚才败了一套DHC的护肤品, 就出了SK~问题?

The results show that the proposed algorithm is effective for both TSP and DHC.

实验结果表明,此改进算法对于TSP和DHC问题 均具有较好的性能.