left handed screw

(botany) spiraling upward from right to left.

（植物学）从右向左螺旋向上。

"To lower the balance, turn the front leveling feet counterclockwise"

电子天平下降,左旋前面地脚螺栓。

left hand thread

左螺纹，倒牙（逆时针方向旋进）

(botany) spiraling upward from left to right.

（植物学）从左到右螺旋向上。

Left_hand Rule,Right_hand Rule and Right_hand Screw Rule;

左手定则、右手定则与右手螺旋定则

Anatomy of Pulmonary Veins of Superior Lobe of the Left Lung by Multi-slice Spiral Computed Tomography;

左肺上叶肺静脉解剖的多层螺旋CT研究

The Application of Post-processing of 64-slice Spiral CT in the Bronchial Anatomy of Left Lung;

64层螺旋CT在左肺支气管解剖中的应用

Influence of Heart Rate on Left Ventricular Ejection Fraction Measured Measured by 64-slice Spiral Computed Tomography

心率对64层螺旋CT左室射血分数测定的影响

Study of the Variations of Renal Artery and Left Renal Vein with 64-slice Spiral CT

64层螺旋CT研究肾动脉及左肾静脉解剖变异

Distance between left atrial appendage and pulmonary vein in MSCT

多层螺旋CT成像下左心耳与肺静脉距离的测量

Assessment of Regional Left Ventricular Function with 64 Multi-detector Row Computed Tomography

64层螺旋CT评价正常左心室局部收缩功能

"To lift the balance, extend the front leveling feet (turn clockwise)."

电子天平升高,右旋前面地脚;电子天平下降,左旋前面地脚螺栓。

Poinsettia makes a turn, it is to point to to the helix record that ties the left and right sides circle seizes branch artificially during growing.

一品红作弯，是指在生长期间人工将枝条扭绑成左右盘旋的螺旋状。

spiral part of a screw

（螺钉的）螺旋部分.

helical gear with helix angle

带螺旋角的螺旋齿轮

paranemic spiral

平行螺旋，反向双股螺旋

helical curve [ line ]

螺旋曲线螺旋(取向)照相

Insert the right-angle plug into the jack as shown in the diagram on the left; then tighten the screw.

请您按左图所示将直角式插头插入插座,并旋紧螺栓。