crown

bit cutting angle

钻冠的尖度，钻头磨角，钎子头刃角

a new tennis champion with a mean service

发球刁钻的新网球冠军.

The jeweler chose diamonds of the first water for the queen's crown.

珠宝商为女皇皇冠选择了最佳的钻石。

The crown was beset with diamonds and jewels.

皇冠上镶嵌着钻石和珠宝。

Sculpture- The art shows a diamond-shaped section at the crown, surrounded by another larger diamond shape.

雕刻-艺术在王冠一个钻石形的区段,被另外的较大钻石形状包围。

and from her crown's diamond-like windows you can overlook the sights around.

从皇冠的钻石样子的窗户中可以俯瞰周围的景色。

The shape of herniated discs liked semicircle or ellipsoidal.

在冠状位上呈钻头状，游离型椎间盘呈条索状，或不规则形。

native to Europe; in America the larvae bore into the stem and crown of corn and other plants.

原产于欧洲；在美洲其幼虫钻入玉米杆、玉米冠和其它植物中。

She asked the artist to paint in diamond necklace, ear-rings and tiara, even though she wore no jewelry.

她要画家画上钻石项链、耳环和冠状头饰，即使她没戴。

It was cut into nine major stones, including the 530-carat Star of Africa, now a part of the Crown Jewels.

它被分割成9块大钻石，其中包括530克拉的"非洲之星"，现在是皇冠珠宝中的一部分。

unit-type drill head

组合钻床钻头, 标准钻头

To bore(a shaft) with a trepan.

钻用钻井机钻（矿井）

offshore drilling

海底钻探;海上钻井;海上钻探;海洋钻井;海洋钻探;近海钻探;滨外钻探

(grammar)either of the determiners `a/an'(the indefinite article)or `the'(the definite article)

冠词（不定冠词a/an或定冠词the)

high-thrust drill

强力钻机，高推力钻机

kelly for well-drilling machiens

旋转钻孔,钻井机用

tap(ping) drill

螺丝孔钻，螺丝底孔钻

combination center drill

组合中心钻，复合中心钻