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- The technique is worthy of being popularized in the construction of pipelines with large or middle diameter because of its low cost,high efficiency and high qualified rate. 由于此种焊接工艺具有生产成本低、生产效率高、一次焊接合格率高等特点,因此在大、中型直径管道施工中具有较好的推广应用价值。
- screw middle - diameter 螺纹中径
- STUDY ON TECHNOLOGICAL PROCESS OF MIDDLE DIAMETER ROPE WIRE 中粗规格制绳钢丝生产工艺方法的研究
- I can't get this screw to come out of the wall. 我无法把这颗螺丝钉从墙上取出。
- The brackets want an extra screw. 托架需要再加一个螺钉。
- The taste of the lemon made her screw up her face. 柠檬把她酸得龇牙咧嘴。
- I'm sick of being piggy in the middle all the time. 我腻烦了总是夹在争吵双方的中间。
- He planted roses in the middle of the garden. 他在花园中间种上玫瑰。
- Does this lid screw on, or does one press it down? 这个盖子是拧的还是按的?
- Turn the screw to the right to tighten it. 将螺钉向右旋紧。
- They tried to screw money out of me. 他们试图勒索我的钱。
- At each turn the screw goes in further. 每一次旋转都使螺丝钉更向里进。
- He admires the chivalry of knights in Middle Ages. 他很佩服中世纪武士的侠义精神。
- It has its roots deep in the Middle Ages. 它起源于遥远的中世纪。
- My wheel twisted off in the middle of the car race. 我的车轮子在汽车比赛中途脱掉了。
- We have studied botany in our middle school. 我们在中学的时候就学过植物学。
- Could you screw the lid off the jar? 你能把这瓶子的盖子给旋开吗?
- There are 300 students or so in this middle school. 这所中学大约有300个学生。
- Withdrawl intensity is increased with screw diameter and length. 椎弓根螺钉的稳定性在骨质疏松时明显降低，对于骨质疏松患者，单纯增加螺钉直径较为困难，一般需进一步强化椎弓根螺钉的稳定性，聚甲基丙烯酸甲酯骨水泥强化骨质疏松椎弓根螺钉能显著增加螺钉的稳定性和抗屈强度，但由于骨水泥聚合产生高热可导致组织损伤，体内长期留置会产生毒性和致癌作用，具有良好生物相容性的新型添加材料，如羟基磷灰石骨水泥、磷酸钙骨水泥等将逐渐替代聚甲基丙烯酸甲酯骨水泥。
- He was appointed the rector of the middle school. 他被任命为那所中学的校长。
