120d

The 180d low temperature stratification treatment and 120d naked stratification treatment are he best way to break seed dormancy .

本研究认为，低温沙藏层积处理180d和裸层积处理120d打破北美鹅掌楸种子休眠的效果最好，处理后的发芽率分别为88%和90%。

Welding of Steering Tie Rod of Hardened and Tempered Steel of 120D Electromotive Wheel Dump - Truck

120D电动轮汽车异种调质钢转向拉杆的焊接

The inhibition effect of biogas fluid without any treatment is 120d > 60d > 0d > 90d > 30d .

经原沼液处理后，其抑制效果强弱依次为120d>60d>0d>90d>30d。

In the storage test , the liquid seted in the refrigerator ( 4 ℃) preserves , through to the microbial regular examination , its preserved time might achieve 120d .

在贮存试验中，将发酵好的混合菌液置于冰箱内（4℃）保存，通过对菌剂的定期检测，其保存期可达到120d。

The results showed that the digestion percentage of crude protein and fiber in rice straw were improved by 11.07 % and 24.43 % on the treatments of limewater and 120d anaerobic fermentation .

研究结果表明，石灰水浸泡并发酵120d时稻草的干物质和粗蛋白消化率分别比对照提高11.07%和24.43%；

Through varying aggregate gradation and cement content , this paper also studied the mixture 7d ( age 's ) compressive strength standard , 120d ( age 's ) cleavage strength and resilience modulus , then provides these parameters ' reasonable limits .

在此基础上，通过变化集料级配和水泥剂量，研究确定出混合料7d龄期的抗压强度标准，120d龄期劈裂强度和抗压回弹模量的合理区间。

Through the research , we put forward the optimized model of the rangeland - husbandry system and verify the productive means of grazing for 185d in the summer and autumn , feeding for 120d in the winter and grazing for 60d in the early spring and the early winter .

通过研究提出天山北坡中段草地畜牧业生产经营系统的优化模式，确立其生产方式为旺季（夏、秋）放牧185d，冷季舍饲120d，初冬和早春放牧60d。

Triploid rates of gastrula ( by chromosome counting ), 1d larvae and 120d juveniles ( by flow-cytometry ) were 34.03 % , 29.54 % and 14.81 % , respectively , which indicated that the triploid rates of induction groups decreased with development and growth of P.crocea .

采用冷休克法进行大黄鱼三倍体大批量诱导，早期胚胎、初孵仔鱼和4月龄幼鱼三倍体检出率分别为34.03%、29.54%和14.81%，表明随生长发育诱导组三倍体检出率有下降趋势。