HD是什么意思？

HD

例句

• Series 6 SG 70 SIMOTRAS HD converters are characterized by their compact, space - saving construction. 6SG70SIMOTRASHD系列变频器的特点是小型能充分利用空间的建筑.
• Tony HD, Richard F . Sequential argon - YAG laser iriddotomies in dark irides. Br J Ophthalmol 1992; 76∶329. 王燕琪, 孙心铨. 钕钇铝石榴石激光联合氩激光周边虹膜切除术. 实用眼科杂志1989; 7∶35.
• The synthesis of chitinase by Bacillus thuringiensis HD 224 strain using eight different carbohydrate resources was studied. 考察八种碳源对苏云金杆菌HD224菌产几丁质酶的影响.