后颚的

If an abnormal frenulum is left untreated, it can result in marginal tissue recession, diastema, post-orthodontic relapse, may interfere with plaque control, prosthesis fabrication, and wound stability following surgery, and may affect facial esthetics and phonetics.

唇系带的异常附著会拉扯牙龈边缘并限制唇的运动，可能因此引起牙龈退缩、牙间隙、齿颚矫正治疗后复发、影响菌斑控制、假牙制作或术后伤口的稳定，甚至於影响美观与发音。

A two-stage posterior subapical osteotomy was used to reestablish the intermaxillary space. Following orthodontic treatment and implant placement, the patient regained occlusal harmony and normal masticatory function.

经分析拟定其治疗计划为：上颚后牙区以门诊手术进行二阶段的后上颚根尖截骨术，增加颚问垂直距离，并以局部矫正装置改正咬合平面，最后利用人工植牙方式来制作补缀物，来恢复病患的咀嚼功能。

Semivowels are vowel-like consonants: that is, the air-flow is not stopped or impeded so as to cause a friction-sound, but the aperture through which the air passes is smaller than the aperture of any vowel, such as

半元音是有些像元音的辅音，也就是说，发半元音时，气流并不需要受阻而形成摩擦音，但气流通过的缝隙要小于发元音时通过的缝隙。例如：1。/w/：舌后软颚半元音

The study indicates that Geodrassus diguitusiformis Hu, 2001 should be transferred to the genus Trachelas; Clubiona heteroducta Zhang et Yin, 1998 and Clubiona xiningensis Hu, 2001 are synonymized with Clubiona gongi Zhang et al., 1997 and Clubiona neglecta O.P.

管巢蛛科、圆颚蛛科、光盔蛛科(圆颚蛛和光盔蛛以前是管巢蛛的一部分，后被分出)目前全球分别已知15属527种、75属831种和32属239种；中国以往记述分别为1属78种(另有3疑问种)、7属18种(另有3疑问种)、和4属19种。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐