在试管中

Objective To evaluate the most effective method of fluoride application to prevent decalcification of enamel before,during and after etching in orthodontic treatment.

目的探讨氟化物在正畸治疗中预防牙釉质脱矿的最佳使用方法。方法制备正畸拔除的前磨牙96颗，随机分成4组，分别为对照组及酸蚀前、中、后用氟组，粘结托槽后，将每个样本分别放入装有2ml酸性人工唾液的试管。

In a large test tube, dissolve 0.5 g (4.5 mmole) of semicarbazide hydrochloride and 0.5 g of anhydrous sodium acetate (or 0.8 g of sodium acetate trihydrate) in 4 mL of distilled water and 7 mL of ethanol.

在一个大试管中，用4 mL蒸馏水和7 mL乙醇溶解 0.5 g (4.5 mmole)的胺基氢氯酸盐和0.5 g无水醋酸钠(或0.8 g的三水合醋酸钠)。

This study investigated the effect of AgNO3 on the in vitro shoot growth and tuberization in the closed and diffusive conditions of two potato Solanum tuberosum L.

在密封或通气条件下，研究了培养基中加入适量硝酸银对马铃薯品种东农303和兰芽试管苗与试管薯的影响。

Tuberization of sense and antisense transgenic plants grown in vitro demonstrated that four of the ten sense plant lines had a significant increase while six of eleven antisense plant lines had a significant reduction in percentage of plantlets formed tubers and number of tubers per plantlet compared with the control.

对转正反义基因植株试管块茎形成的诱导结果表明，在10个转正义patatin基因植株中，有4个株系的结薯株率和单株结薯数比其对照明显增加，在11个转反义patatin基因植株中，有6个株系的结薯株率和单株结薯数比对照明显减少。

In vitro, hydrolyzed collagen action has been demonstrated on chondrocytes in joints.

在试管实验中，水解胶原蛋白对关节的修复作用已经得到证实。

In raising test tube, amid adds person bromine water, oscillation, what phenomenon does observation have to happen?

在其中一支试管中加人溴水，振荡，观察有什么现象发生？

The root inducation rate is 100% on the cotton, pearl rock and agar medium, but the number of root induced is maximum. The average number is 5.47. The young root possess many multistage branchs. The transplant effect also showed pearl rock is ideal substitute for agar.

珍珠岩、琼脂和脱脂棉的生根率都达到100％，生根数以珍珠岩最高，平均5.47条，幼根具多级分枝，试管苗移栽也表明，珍珠岩在地灵试管生根中是琼脂的理想替代物。

Can improve the survival ratio of seeding. Culturing in hormone media can make meristem tip survive once time, and the result is better than two-time-cultivation.3、The meristem tip with two phyllomes(0.3-0.4mm in size)were found to suitable for virus-free seeding culture that were cut from aseptic seeding, which led to higher survival and virus-free ratio, up to 72.1%and 54.2%.

在培养基中添加椰汁、香蕉汁等有机添加物可以明显提高成苗率。3、采用二次剥离茎尖的方法，从无菌试管苗上切取带2个叶原基(大小0.3-0.4mm)茎尖分生组织培养，成苗率为72.1%，脱毒率为54.2%。

The features include a reusable leg-plate adapter cable that is easier to clean, a new spiral electrode with a release mechanism that is easier for clinicians to use, and a spiral tip that is secured within the insertion tube for increased safety.

新特征包括可重复使用的更加易于清洁的leg-plate适配器电缆，新型螺旋电极具有释放机制方便临床医生操作，螺旋尖头包裹在插入式试管中从而提高了安全性。

One hour later, sarre dosage of oleic acid was injected through one side femoral vein by same wayAll rats were killed 3h,6h after operation, respectively.

分别在静脉注药后3h、6h2个时间点处死动物，左心室完全取血，分别放入试管中，分离血清或血浆，待测ACE、AⅡ、ET-1。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。