and on packing volume and quality should be limited to a minimum, packaging requirements for the implementation of decrement;

packing volume and material standard to make national standards.

包装容积和材质标准有新变化国家标准作出了修改。

detachable flexible cable or cord

易取下的软缆或软线

mean square radius of gyration

均方旋转半径

relationship between mean-square radius of gyration and degree of branching for highly branched copolymers

高度支化共聚物的均方回转半径和支化度的关系

which has the minimum radius of gyration in the oval section.

即椭圆截面的最小回转半径处。

in both, the large "radius of gyration" means the shaking has a lot of inbuilt inertia to overcome.

巨大的“旋动半径”意味着宝塔自身有很大的惯性，来抵抗震动。

for a homogeneous rigid body, the radius of gyration is given only by its geometric shape, but not by its density.

对于均质刚体，仅与几何形状有关，与密度无关。

two homogenous rigid bodies with identical shapes, but made of different materials (different densities), have the same radius of gyration.

对于几何形状相同而材料不同（密度不同）的均质刚体，其回转半径是相同的。

the role of ureterolithotomy in situ

原位法输尿管切开取石术

experience of 17 patients with ureteral calculi treated by laparoscopic ureterolithotomy

腹腔镜输尿管切开取石术17例体会

retroperitoneoscopic ureterolithotomy on patients with mid- upper segment of ureter stones

后腹腔镜下输尿管中上段切开取石术

retroperitoneal laparoscopic ureterolithotomy for the treatment of upper ureteral calculi(report of 15 cases)

后腹腔镜输尿管上段切开取石术（附15例报告）

retroperitoneal laparoscopic ureterolithotomy in treatment of ureteral calculi

后腹腔镜输尿管切开取石术的临床应用

comparison of the effect between retroperitoneal laparoscopic and lumbar straight incision ureterolithotomy

后腹腔镜与经腰背部直切口途径行输尿管切开取石术的疗效比较

retroperitoneal approach laparoscopic ureterolithotomy for upper ureter lithiasis

后腹腔镜输尿管上段切开取石术

abdominal versus retroperitoneal laparoscopic ureterolithotomy: a comparative study

经腹与经腹膜后腹腔镜输尿管切开取石术的比较

comparison of surgical outcome between retroperitoneal laparoscopic and lumbar straight incision ureterolithotomy

后腹腔镜与经腰背部途径治疗输尿管上段结石的疗效比较

to evaluate the selection of indications, surgical techniques of retroperitoneoscopic ureterolithotomy.

探讨后腹腔镜下输尿管切开取石术的适应症选择及手术技巧。

objective: to evaluate the clinical curative effect and practical value of laparoscopic transperitoneal ureterolithotomy.

目的探讨经腹腔行腹腔镜输尿管切开取石术的临床疗效及应用价值。

aim to sum up the experience of the upper and middle ureterolithotomy via the semilunar line incision.

目的总结经半月线切口在输尿管上中段取石术中应用的体会。