抑低

High dose of MT may perform better antitumor effect than low dose of MT, and MT combining with GEM significantly inhibited the growth of human pancreatic cancer in nude mice subcutaneous xenograft.

结论褪黑素能有效抑制裸鼠皮下移植性胰腺癌的生长，高剂量组的抑瘤效果较低剂量更为明显，并且与吉西他滨联合应用，可显著增加吉西他滨抑瘤效果。

For the application of Direct Broadcast Satellite ( DBS), a Ku-band high image rejection broadband mixer is designed using ADS. It appears predominant performances when compared with common single balanced mixer.

针对卫星电视直播接收系统，用ADS设计了一个宽频带、高镜像抑制度、低噪声的Ku波段镜像抑制混频器，并同普通平衡混频器进行了对比分析，显示了其优越的性能。

The receiver takes use of three methods to enhance the image reject performance. Compared with traditional In phase and Quadrature ( I/ Q) structure, double quadrature weaver architecture performs higher image reject.

接收机前端应用了三种方法来提高镜像抑制度：低中频双正交weaver结构比一般的同相/正交（I/Q）两路下变频结构具有更高的镜像抑制能力；

He let out a choked scream.

他发出一声抑低的尖叫。

Empirical research indicates that market-orient reforms are critical factor to lower the underpricing of IPO.

实证研究表明，市场化改革程度越高，股票发行抑价率越低。

The structure of mixer is improved, so it shows higher image-rejection as well as lower conversion loss. Also, the isolation between each port is better than before.

对常用混频器的结构进行了改进，通过测试结果可以看出，这种改进能实现较高的镜频抑制度和较低的变频损耗，且各端口间的隔离度也较好。