Holding the bow is like a teeterboard supported by thumb as the pivot and the cooperated forcing of forefinger and little finger produces a moment M. The "P-x-M Line Method" shows when playing a down bow, M increases with x and gradually changes its direction and this process is determined by P, the gravity and barycenter of bow. The "P-x-F Plane Method" shows that the most force-saving bowing path should locate in the lower part of this plane. The analyses of "Helmholtz Motion" and "Schelleng Diagram" indicate P and its range is in direct ratio with volume, velocity of bow, the approaching degree of the bow to the bridge and has some relationship with the quality of string and bow.

國(guó)內(nèi)近期出現(xiàn)了用物理模型來(lái)研究小提琴運(yùn)弓問(wèn)題的嘗試本文第一部分首先指出握弓類似于一個(gè)以***(F3)為支點(diǎn)的蹺蹺板日韩中文字幕高清在线二区，主要以食指(F1)和小指(F2)的施力配合，產(chǎn)生握弓力矩M和子发生了性关系的免费视频；隨后用"P-x-M直線法"證實(shí)：演奏下弓是M隨的***而逐漸增大并轉(zhuǎn)換方向的***免费三级A片，此***取決于P、弓的重力和重心天天躁夜夜躁狠狠躁图片；并首創(chuàng)"P-x-F平面法"操来操去网站，在x，F(xiàn)1欧美三级片免费久久，F(xiàn)2空間中證實(shí)：省力的運(yùn)弓路徑應(yīng)在該平面中處于較低的位置第二部分通過(guò)分析"赫爾姆霍茨運(yùn)動(dòng)"和"Schelleng圖表"指出：P及其變化范圍和音量日本三级性爱视频、弓速、弓與琴碼的接近程度成正比欧美日韩精品一区二区性色av，并與琴弦和弓自身的性質(zhì)有關(guān)

"Bow" several English senses, but the obsolete Scottish dialect sense traces back to much older words meaning "dwelling", while some senses come from the same root as the English word "bough", meaning the limb of a tree +"truckle" Eng. to take a subordinate position

名字來(lái)源：護(hù)樹(shù)羅鍋的英文名字是bowtruckle："bow"在英文里有多種意思人人操人人摸2018，但它也來(lái)自一個(gè)古舊廢棄的蘇格蘭方言，意思是"居住"欧美色精品视频在线观看9，同時(shí)免费的精油按摩毛片，與它同根的英文詞"bough"則是樹(shù)的枝干的意思；"truckle"在英文里天天操天天拍，表示"從屬毛片在线视频网站、依賴"的意思。

Turn round on one's gallopingsteed and aim an arrow at ...; bestride the horse and bend the bow -- be ready to fight; make a show of readiness to fight; ride round and round bending one's bow -- to assume an impressive posture but take no action

成語(yǔ)盤馬：騎著馬繞圈子跑欧美三级片手机在线看；彎弓：拉弓準(zhǔn)備發(fā)射十八禁网站免费观看。騎馬盤旋張弓欲射。比喻故作姿態(tài)而不付諸行動(dòng)色美女视频。例句劉參謀不作聲響如何看毛片；故意作出～的姿態(tài)；好逼七姑奶往深去談一级老女人特黄A片。

Bow to the hand of face：即使恨神,也已經(jīng)太遲了

And it tasted so bittersweet 任憑命運(yùn)之手?jǐn)[布 | Bow to the hand of face 即使恨神,也已經(jīng)太遲了 | Curse the gods but it is too late 灰已是灰

Bow to the hand of fate：向命運(yùn)低頭

And it tastes so bittersweet... 它是如此苦樂(lè)參半...... | Bow to the hand of fate! 向命運(yùn)低頭! | Curse the gods but it's too late! 詛咒上帝已太遲!

bow to necessity：屈服于需要

bow tie 領(lǐng)結(jié) | bow to necessity 屈服于需要 | bow wave 沖擊波