查询词典 drill bit

It is proposed that the appearance of a new kind of mud additive can not represent the formation of a new mud system . The main influence factors of flow resistance at drill bit nozzle are solid content , particle size distribution and hydrophilicity of solid . It is not suitable to use high shear viscosity of both Casson rheology model and determined to predict drilling efficiency .

全面、系统地论述了处理剂和泥浆体系的关系；聚合物的使用浓度应突破全絮凝点，实现低固相应以发挥聚合物的抑制作用为主，絮凝作用为辅；影响钻头水眼处流动阻力的主要因素是泥浆中的固相含量、粒度分布及固相的亲水性，用η_∞代表钻头水眼粘度是欠妥的；聚合物泥浆处理剂的发展主要是开发新的单体和研究新的复配物。

I put a drill bit in the center holes and turned the two plates while checking with my digital caliper for the best alignment.

我把一钻头在中心孔，把两大板块的同时，检查与我的数显卡尺为最佳路线。

The first guiding portion (19) projects farther radially outwardly than the second guiding portion (20) relative to the center axis of the drill bit.

相对于钻头的中心轴线，第一导向部分(19)径向向外伸出得比第二导向部分(20)远。

The equation of length between drill bit and centralizer is obtained.

扶正器与钻头之间的安放间距均减小。

Using hot-press techniques to fix ceramal in drill bit is trusty.

同时利用热压工艺将陶瓷固定在钻头体上是可靠的。

In this paper,trial-manufacture and application of sandwich structure on diamond drill bit were studied.

采用冷压成型夹层和加灰热压烧结法制备了一种夹层结构金刚石钻头。

The company produces various specifications of diamond drill bit, at home and abroad, must occupy the market share, in geological exploration, foundation grouting in areas such as hydropower, can be widely used and was very well received.

本公司生产的各种规格的金刚石钻头，在国内外占有一定的市场份额，在地质勘探、水电站基础灌浆等领域，都能得到广泛应用，并获一致好评。

Is located in the city, the northwest region of considerable size artificial diamond, CBN wheel, diamond drill bit products and professional manufacturing enterprises.

西安航都超硬磨具有限公司坐落在西安飞机城内，是西北地区颇具规模的人造金刚石、立方氮化硼砂轮，金刚石钻头及其制品的专业生产制造企业。

High quality, the fair price is our characteristic, through ours endeavor, provides the high performance-to-price ratio unceasingly for the customer the diamond drill bit product, enables the customer to reduce the cost, the promotion quality.

优质、平价是我们的特点，通过我们的努力，不断为客户提供高性价比的水钻产品，让客户能降低成本，提升品质。

HSS material, Hss steel, HSS drill bit, end mill, tap, HSS tool bit.

3B76 高速钢材料，高速钢钻头。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。